Eastern Oregon
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Eastern Oregon is the eastern part of the
U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...
of
Oregon Oregon () is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington, while the Snake River delineates much of its eastern boundary with Idaho. T ...
. It is not an officially recognized geographic entity; thus, the boundaries of the region vary according to context. It is sometimes understood to include only the eight easternmost
counties A county is a geographic region of a country used for administrative or other purposesChambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...
in the state; in other contexts, it includes the entire area east of the Cascade Range.
Cities A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...
in the basic eight-county definition include
Baker City Baker City is a city in and the county seat of Baker County, Oregon, United States. It was named after Edward D. Baker, the only U.S. Senator ever killed in military combat. The population was 10,099 at the time of the 2020 census. History Pla ...
, Burns, Hermiston, Pendleton, Boardman, John Day, La Grande, and
Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central C ...
.
Umatilla County Umatilla County () is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 80,075. Hermiston is the largest city in Umatilla County, but Pendleton remains the county seat. Umatilla County is part of ...
is home to the largest population base in Eastern Oregon; accounting for 42% of the region's residents. Hermiston, located in Umatilla County, is the largest city in the region, accounting for 10% of Eastern Oregon's residents. Major industries include transportation/warehousing, timber, agriculture and tourism. The main transportation corridors are
I-84 Interstate 84 may refer to: * Interstate 84 (Oregon–Utah), passing through Idaho, formerly known as Interstate 80N * Interstate 84 (Pennsylvania–Massachusetts) Interstate 84 (I-84) is an Interstate Highway in the Northeaster ...
,
U.S. Route 395 U.S. Route 395 (US 395) is a U.S. Route in the western United States. The southern terminus of the route is in the Mojave Desert at Interstate 15 near Hesperia. The northern terminus is at the Canada–US border near Laurier, where the road ...
, U.S. Route 97,
U.S. Route 26 U.S. Route 26 (US 26) is an east–west United States highway that runs from Seaside, Oregon to Ogallala, Nebraska. When the U.S. highway system was first defined, it was limited to Nebraska and Wyoming; by the 1950s, it continued into Idaho and ...
,
U.S. Route 30 U.S. Route 30 or U.S. Highway 30 (US 30) is an east–west main route in the system of the United States Numbered Highways, with the highway traveling across the northern tier of the country. With a length of , it is the third longest ...
, and
U.S. Route 20 U.S. Route 20 or U.S. Highway 20 (US 20) is an east–west United States Numbered Highway that stretches from the Pacific Northwest east to New England. The "0" in its route number indicates that US 20 is a major coast-to-coast route. S ...
. Compared to the climate of
Western Oregon Western Oregon is a geographical term that is generally taken to mean the part of the U.S. state of Oregon within of the Oregon Coast, on the west side of the crest of the Cascade Range. The term is applied somewhat loosely, however, and is somet ...
, the climate of Eastern Oregon is a drier continental climate, with much greater seasonal variations in temperature. Unlike the
Willamette Valley The Willamette Valley ( ) is a long valley in Oregon, in the Pacific Northwest region of the United States. The Willamette River flows the entire length of the valley and is surrounded by mountains on three sides: the Cascade Range to the eas ...
, Eastern Oregon receives a significant amount of snow in the winter. Some parts of Eastern Oregon receive fewer than of rain yearly, classifying them as deserts. This desert climate is in part due to a rain shadow effect caused by the Cascade Range. Pine and juniper forests cover 35% of Eastern Oregon, much in the mountains that include the Blue Mountains, Strawberry Mountains,
Wallowa Mountains The Wallowa Mountains () are a mountain range located in the Columbia Plateau of northeastern Oregon in the United States. The range runs approximately northwest to southeast in southwestern Wallowa County and eastern Union County between the ...
,
Trout Creek Mountains The Trout Creek Mountains are a remote, semi-arid Great Basin mountain range mostly in southeastern Oregon and partially in northern Nevada in the United States. The range's highest point is Orevada View Benchmark, above sea level, in Nevada. ...
,
Ochoco Mountains The Ochoco Mountains are a mountain range in central Oregon in the United States, located at the western end of the Blue Mountains. They were formed when Permian, Triassic, and Jurassic rocks were slowly uplifted by volcanic eruptions to form ...
, and
Steens Mountain Steens Mountain is in the southeastern part of the U.S. state of Oregon, and is a large fault-block mountain. Located in Harney County, it stretches some north to south, and rises from the west side the Alvord Desert at elevation of about t ...
. Volcanic basalt flows from the
Columbia River Basalt Group The Columbia River Basalt Group is the youngest, smallest and one of the best-preserved continental flood basalt province on Earth, covering over mainly eastern Oregon and Washington, western Idaho, and part of northern Nevada. The basalt grou ...
covered large sections of Eastern Oregon 6 to 17 million years ago. Other landforms include the
Alvord Desert The Alvord Desert is a desert located in Harney County, in southeastern Oregon in the Western United States. It is roughly southeast of Steens Mountain. The Alvord Desert is a dry lake bed and averages of rain a year. Two mountain ranges ...
,
Owyhee Desert The Owyhee Desert ecoregion, within the deserts and xeric shrublands biome, is in the Northwestern United States. The Owyhee Uplands Byway passes through the desert. Geography An arid region of canyons, volcanic rock, sagebrush and grass makes u ...
,
Warner Valley The Warner Valley is a valley in south-central Oregon in the United States. It is a remote valley at the northwestern corner of North America's Basin and Range Province. The valley is home to a chain of lakes and wetlands known as the Warner ...
,
Deschutes River Deschutes River may refer to: *Deschutes River (Oregon) The Deschutes River in central Oregon is a major tributary of the Columbia River. The river provides much of the drainage on the eastern side of the Cascade Range in Oregon, gathering many ...
,
Owyhee River The Owyhee River is a tributary of the Snake River located in northern Nevada, southwestern Idaho and southeastern Oregon in the United States. It is long.Owyhee Rive accessed November 3, 2019 The river's drainage basin is in area, one of the l ...
,
Grande Ronde River The Grande Ronde River ( or, less commonly, ) is a tributary of the Snake River, long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed May 3, 2011 in northeastern Oregon and southeastern ...
, Joseph Canyon,
The Honeycombs The Honeycombs were an English beat group, founded in 1963 in North London, best known for their chart-topping 1964 hit, the million selling "Have I the Right?" The band featured Honey Lantree on drums, one of the few female drummers in band ...
, and
Malheur Butte Malheur Butte is an extinct volcano located in Malheur County, Oregon. Between 20 and 15 million years ago, the region from north-central Washington to northeastern California experienced a series of volcanic eruptions and basalt lava floods th ...
.


Geography

According to the Eastern Oregon Visitors Association, Eastern Oregon includes only the following eight counties:
Morrow Morrow is a word meaning "the next day" in literary English. It also means "morning" in archaic English Morrow may also refer to: Places in the United States and Canada United States * Morrow, Arkansas *Morrow, Georgia * Morrow, Louisiana *Morr ...
, Umatilla,
Union Union commonly refers to: * Trade union, an organization of workers * Union (set theory), in mathematics, a fundamental operation on sets Union may also refer to: Arts and entertainment Music * Union (band), an American rock group ** ''Un ...
, Wallowa,
Grant Grant or Grants may refer to: Places *Grant County (disambiguation) Australia * Grant, Queensland, a locality in the Barcaldine Region, Queensland, Australia United Kingdom * Castle Grant United States * Grant, Alabama * Grant, Inyo County, ...
, Baker, Harney, and Malheur. Some definitions of the region are more restrictive, while others include the base eight counties listed above plus several adjacent counties. Still others include the entire area east of the Cascade Range; this meaning would also include
Sherman Sherman most commonly refers to: *Sherman (name), a surname and given name (and list of persons with the name) ** William Tecumseh Sherman (1820–1891), American Civil War General *M4 Sherman, a tank Sherman may also refer to: Places United St ...
,
Crook Crook is another name for criminal. Crook or Crooks may also refer to: Places * Crook, County Durham, England, a town * Crook, Cumbria, England, village and civil parish * Crook Hill, Derbyshire, England * Crook, Colorado, United States, a ...
, Deschutes, Gilliam,
Jefferson Jefferson may refer to: Names * Jefferson (surname) * Jefferson (given name) People * Thomas Jefferson (1743–1826), third president of the United States * Jefferson (footballer, born 1970), full name Jefferson Tomaz de Souza, Brazilian foo ...
, Klamath,
Lake A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
,
Wasco Wasco is the name of four places in the United States: Places United States * Wasco, California, a city in California ** Wasco State Prison, located in Wasco, California * Wasco, Illinois, a former hamlet (unincorporated town) in Illinois, now pa ...
, and Wheeler counties. The extreme eastern section of Oregon in the Snake River Valley, including the city of Ontario, is part of the
Treasure Valley The Treasure Valley is a valley in the western United States, primarily in southwestern Idaho, where the Payette, Boise, Weiser, Malheur, Owyhee, and Burnt rivers drain into the Snake River. It includes all the lowland areas from Vale in rur ...
, which extends east to
Boise, Idaho Boise (, , ) is the capital and most populous city of the U.S. state of Idaho and is the county seat of Ada County. On the Boise River in southwestern Idaho, it is east of the Oregon border and north of the Nevada border. The downtown ar ...
. Unlike the rest of the state, that section lies within the
Mountain Time Zone The Mountain Time Zone of North America keeps time by subtracting seven hours from Coordinated Universal Time (UTC) when standard time ( UTC−07:00) is in effect, and by subtracting six hours during daylight saving time ( UTC−06:00). The ...
. Sacajawea Peak is the region's highest mountain.


Politics

Although Oregon as a whole is generally considered a
blue state Starting with the 2000 United States presidential election, the terms "red state" and "blue state" have referred to U.S. states whose voters vote predominantly for one party — the Republican Party in red states and the Democratic Party in b ...
, Eastern Oregon is far more conservative than the west. Morrow County is the only Eastern Oregon county to have supported Democratic presidential nominees after Lyndon Johnson’s 1964 landslide, having voted for
Jimmy Carter James Earl Carter Jr. (born October 1, 1924) is an American politician who served as the 39th president of the United States from 1977 to 1981. A member of the Democratic Party, he previously served as the 76th governor of Georgia from 1 ...
in 1976 and for
Bill Clinton William Jefferson Clinton ( né Blythe III; born August 19, 1946) is an American politician who served as the 42nd president of the United States from 1993 to 2001. He previously served as governor of Arkansas from 1979 to 1981 and agai ...
in 1996. In the
2012 presidential election This national electoral calendar for 2012 lists the national/ federal elections held in 2012 in all sovereign states and their dependent territories. By-elections are excluded, though national referendums are included. January *3–4 January ...
, the Republican candidate Mitt Romney received at least 60% of the vote in every county in Eastern Oregon. The political divide between the eastern and western parts of the state has led some residents of Eastern Oregon to feel that the state of Oregon, with the majority of its population and political control based in the western part of the state, has neglected the eastern part of the state, preventing it from developing along with the western part. A movement to have Eastern Oregon secede and join the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
as a 51st state was underway in 2008. In 2021, five counties voted to join Idaho, the state located east of Oregon. As of May 2022, eight counties have voted yes to joining Idaho, while several counties, such as
Douglas Douglas may refer to: People * Douglas (given name) * Douglas (surname) Animals * Douglas (parrot), macaw that starred as the parrot ''Rosalinda'' in Pippi Longstocking *Douglas the camel, a camel in the Confederate Army in the American Civi ...
and Josephine, have voted no. Supporters of the movement expect the new border between the states to run mostly along the
Deschutes River Deschutes River may refer to: *Deschutes River (Oregon) The Deschutes River in central Oregon is a major tributary of the Columbia River. The river provides much of the drainage on the eastern side of the Cascade Range in Oregon, gathering many ...
.


Cities

Top 15 most populated Eastern Oregon cities (according to the 8-county definition): By extending the boundary outside to include neighboring counties, Eastern Oregon would include three of the largest population centers east of the Cascade Range: Bend, Redmond, and
Klamath Falls Klamath Falls ( ) is a city in and the county seat of Klamath County, Oregon, United States. The city was originally called ''Linkville'' when George Nurse founded the town in 1867. It was named after the Link River, on whose falls the city was ...
. However, these lie outside the stricter boundary.


Climate and ecology

Compared to the
maritime Maritime may refer to: Geography * Maritime Alps, a mountain range in the southwestern part of the Alps * Maritime Region, a region in Togo * Maritime Southeast Asia * The Maritimes, the Canadian provinces of Nova Scotia, New Brunswick, and Prin ...
rainforest climate of
Western Oregon Western Oregon is a geographical term that is generally taken to mean the part of the U.S. state of Oregon within of the Oregon Coast, on the west side of the crest of the Cascade Range. The term is applied somewhat loosely, however, and is somet ...
, which is adjacent to the
Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contin ...
, the climate of Eastern Oregon is a drier continental climate, with much greater seasonal variations in temperature. Unlike the Willamette Valley, Eastern Oregon gets a significant amount of snow in the winter. Some parts of Eastern Oregon receive fewer than of rain yearly, classifying them as deserts. The driest parts are the southeast and the area near Redmond. This desert climate is in part due to a rain shadow effect caused by the Cascade Range. Pine and juniper forests cover 35% of Eastern Oregon, especially in the mountains east of
Klamath Falls Klamath Falls ( ) is a city in and the county seat of Klamath County, Oregon, United States. The city was originally called ''Linkville'' when George Nurse founded the town in 1867. It was named after the Link River, on whose falls the city was ...
and in the Blue Mountains.


Economy

The region's economy is primarily agricultural.
Timber Lumber is wood that has been processed into dimensional lumber, including beams and planks or boards, a stage in the process of wood production. Lumber is mainly used for construction framing, as well as finishing (floors, wall panels, w ...
and
mining Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic ...
, while formerly key industries, have decreased in importance in recent years. Cultural tourism,
agritourism Agritourism or agrotourism involves any agriculturally based operation or activity that brings visitors to a farm or ranch. Types A 2018 article published in the ''Journal of Agriculture, Food Systems, and Community Development'' classified a ...
and
ecotourism Ecotourism is a form of tourism involving responsible travel (using sustainable transport) to natural areas, conserving the environment, and improving the well-being of the local people. Its purpose may be to educate the traveler, to provide fund ...
continue to develop. The
wheat Wheat is a grass widely cultivated for its seed, a cereal grain that is a worldwide staple food. The many species of wheat together make up the genus ''Triticum'' ; the most widely grown is common wheat (''T. aestivum''). The archaeologi ...
growing region of Eastern Oregon includes the
Columbia Plateau The Columbia Plateau is a geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Col ...
portion of northeastern Oregon, which begins with very marginal wheat fields in central Wasco County and extends east through Umatilla County. Its rich loess soils "help make the Columbia Plateau one of the premier wheat-producing regions in the world." South of the wheat lands of northeast Oregon, agricultural activity is generally limited to livestock grazing except where irrigation is available.
Irrigated Irrigation (also referred to as watering) is the practice of applying controlled amounts of water to land to help grow crops, landscape plants, and lawns. Irrigation has been a key aspect of agriculture for over 5,000 years and has been devel ...
areas are often used to produce alfalfa hay.


Recreation

From the high desert to the rugged mountainous areas of the Eagle Cap Wilderness area, Eastern Oregon has a range of outdoor recreational opportunities such as skiing, rafting, and hiking. Anthony Lakes is the largest ski resort in Eastern Oregon. Spout Springs, located in the
Umatilla National Forest The Umatilla National Forest, in the Blue Mountains of northeast Oregon and southeast Washington, covers an area of 1.4 million acres (5,700 km2). In descending order of land area the forest is located in parts of Umatilla, Grant, Columbia ...
in the Blue Mountains, is popular with families. Rafting is often seasonal on the rivers that are snowpack-dependent and not dammed. The
Owyhee River The Owyhee River is a tributary of the Snake River located in northern Nevada, southwestern Idaho and southeastern Oregon in the United States. It is long.Owyhee Rive accessed November 3, 2019 The river's drainage basin is in area, one of the l ...
is an example of a desert canyon river experience. The Snake River offers boating experiences that range from a quiet drift through the desert to hair-raising thrills of class II to III+ rapids.


Transportation

Historically, the region has been relatively isolated from
Western Oregon Western Oregon is a geographical term that is generally taken to mean the part of the U.S. state of Oregon within of the Oregon Coast, on the west side of the crest of the Cascade Range. The term is applied somewhat loosely, however, and is somet ...
, due to the difficulty of crossing the Cascades. Early settlers floated down the Columbia River from
The Dalles The Dalles is the largest city of Wasco County, Oregon, United States. The population was 16,010 at the 2020 census, and it is the largest city on the Oregon side of the Columbia River between the Portland Metropolitan Area, and Hermiston ...
to reach Western Oregon. In 1845, Sam Barlow built a
road A road is a linear way for the conveyance of traffic that mostly has an improved surface for use by vehicles (motorized and non-motorized) and pedestrians. Unlike streets, the main function of roads is transportation. There are many types of ...
around the south side of Mount Hood, which served as the final leg of the
Oregon Trail The Oregon Trail was a east–west, large-wheeled wagon route and emigrant trail in the United States that connected the Missouri River to valleys in Oregon. The eastern part of the Oregon Trail spanned part of what is now the state of Kans ...
. The
Applegate Trail The Applegate Trail was an emigrant trail through the present-day U.S. states of Idaho, Nevada, California, and Oregon used in the mid-19th century by emigrants on the American frontier. It was originally intended as a less dangerous alternative t ...
and
Santiam Wagon Road The Santiam Wagon Road was a freight route in the U.S. state of Oregon between the Willamette Valley and Central Oregon regions from 1865 to the 1930s. It is considered one of the most important historical routes in the state. Officially known as ...
were constructed soon after, connecting eastern and western Oregon in the southern and central parts of the state. In the early 20th century,
Samuel Hill Samuel Hill (13 May 1857 – 26 February 1931), usually known as Sam Hill, was an American businessman, lawyer, railroad executive, and advocate of good roads. He substantially influenced the Pacific Northwest region's economic dev ...
built the Columbia River Highway, allowing automobiles to pass through the
Columbia River Gorge The Columbia River Gorge is a canyon of the Columbia River in the Pacific Northwest of the United States. Up to deep, the canyon stretches for over as the river winds westward through the Cascade Range, forming the boundary between the st ...
. Railroads began to be important as early as 1858 with the construction of the
Oregon Portage Railroad The Oregon Portage Railroad was the first railroad in the U.S. state of Oregon. It originally ran for , with an accompanying of telegraph line, and was later extended to a length of . The railroad was located on the south bank of the Cascades ca ...
which built a bypass around the rapids at
Cascade Locks Cascade Locks is a city in Hood River County, Oregon, United States. The city took its name from a set of locks built to improve navigation past the Cascades Rapids of the Columbia River. The U.S. federal government approved the plan for the l ...
. This was followed by the 1862 incorporation of the
Oregon Steam Navigation Company The Oregon Steam Navigation Company (O.S.N.) was an American company Incorporation (business), incorporated in 1860 in Washington (U.S. state), Washington with partners J. S. Ruckle, Henry Olmstead, and J. O. Van Bergen. It was incorporated in Was ...
whose operations included building a rail bypass from
The Dalles The Dalles is the largest city of Wasco County, Oregon, United States. The population was 16,010 at the 2020 census, and it is the largest city on the Oregon side of the Columbia River between the Portland Metropolitan Area, and Hermiston ...
to
Celilo Falls Celilo Falls (Wyam, meaning "echo of falling water" or "sound of water upon the rocks," in several native languages) was a tribal fishing area on the Columbia River, just east of the Cascade Mountains, on what is today the border between the U.S. ...
. In 1880 these two short sections of rail were incorporated into the
Oregon Railway and Navigation Company The Oregon Railroad and Navigation Company (OR&N) was a railroad that operated a rail network of running east from Portland, Oregon, United States, to northeastern Oregon, northeastern Washington, and northern Idaho. It operated from 1896 as a ...
(OR&N). Shortly thereafter
Henry Villard Henry Villard (April 10, 1835 – November 12, 1900) was an American journalist and financier who was an early president of the Northern Pacific Railway. Born and raised by Ferdinand Heinrich Gustav Hilgard in the Rhenish Palatinate of the Kin ...
, who then controlled OR&N, moved aggressively to block entry of the then under construction Northern Pacific Railway into the Columbia Gorge. In an agreement first made in March 1880 and formalized in the fall of 1880, the Northern Pacific Railway, then controlled by
Frederick Billings Frederick H. Billings (September 27, 1823 – September 30, 1890) was an American lawyer, financier, and politician. He is best known for his legal work on land claims during the early years of California's statehood and his presidency of the ...
, and the OR&N, at that time controlled by Henry Villard, agreed to divide the
Columbia Plateau The Columbia Plateau is a geologic and geographic region that lies across parts of the U.S. states of Washington, Oregon, and Idaho. It is a wide flood basalt plateau between the Cascade Range and the Rocky Mountains, cut through by the Col ...
at the Snake River, with the Northern Pacific staying to the north and the OR&N staying to the south. Northern Pacific was not to build down the gorge into
Portland Portland most commonly refers to: * Portland, Oregon, the largest city in the state of Oregon, in the Pacific Northwest region of the United States * Portland, Maine, the largest city in the state of Maine, in the New England region of the northeas ...
, but would receive
trackage rights Railway companies can interact with and control others in many ways. These relationships can be complicated by bankruptcies. Operating Often, when a railroad first opens, it is only a short spur of a main line. The owner of the spur line may ...
on the tracks that OR&N was building on the south bank into Portland. The first St. Paul-Portland Northern Pacific train arrived in Portland on September 12, 1883, via OR&N trackage down the Oregon side of the Columbia River from
Wallula, Washington Wallula () is a census-designated place (CDP) in Walla Walla County, Washington, United States. The population was 179 at the 2010 census. History The Lewis and Clark Expedition reached this area April 27, 1806, on their return journey from the ...
forever ending the isolation of at least the northern portion of Eastern Oregon. A year later in November 1884, the
Oregon Short Line The Oregon Short Line Railroad was a railroad in Wyoming, Idaho, Utah, Montana and Oregon in the United States. The line was organized as the Oregon Short Line Railway in 1881 as a subsidiary of the Union Pacific Railway. The Union Pacific int ...
was completed across southern Idaho and met the OR&N at Huntington, providing rail service that essentially paralleled the Oregon Trail all the way from Omaha, Nebraska. Later the OR&N became part of the
Union Pacific Railway The Union Pacific Railroad , legally Union Pacific Railroad Company and often called simply Union Pacific, is a freight-hauling railroad that operates 8,300 locomotives over routes in 23 U.S. states west of Chicago and New Orleans. Union Paci ...
. The only other railroad ever built east over the Cascade Mountains was trackage that was to become part of the Southern Pacific Transportation Company, which was opened in 1926 over
Willamette Pass Willamette Pass () is a mountain pass crossing the crest of the Cascade Range in Oregon, United States. It is less commonly known as Willamette Summit. The pass is traversed by Oregon Route 58 and by Union Pacific's (ex- Southern Pacific) Cas ...
to
Klamath Falls Klamath Falls ( ) is a city in and the county seat of Klamath County, Oregon, United States. The city was originally called ''Linkville'' when George Nurse founded the town in 1867. It was named after the Link River, on whose falls the city was ...
"Southern Pacific Railroad."Trainweb.org
to bypass the difficult line south of Eugene to Ashland. All-weather highways over the Cascade Mountains were not completed until the 1930s and 1940s.Tonsfeldt, Ward and Paul G. Claeyssens (2004; revised and updated 2014)
Subtopic : Post-Industrial Years: 1970-Present: Tourism and Recreation.
''The Oregon History Project''. Retrieved on June 17, 2016.
Major road routes through eastern Oregon include
I-84 Interstate 84 may refer to: * Interstate 84 (Oregon–Utah), passing through Idaho, formerly known as Interstate 80N * Interstate 84 (Pennsylvania–Massachusetts) Interstate 84 (I-84) is an Interstate Highway in the Northeaster ...
from
Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central C ...
to the
Columbia River Gorge The Columbia River Gorge is a canyon of the Columbia River in the Pacific Northwest of the United States. Up to deep, the canyon stretches for over as the river winds westward through the Cascade Range, forming the boundary between the st ...
. The only other interstate freeway in the region is an eleven-mile (18 km) stretch of
Interstate 82 Interstate 82 (I-82) is an Interstate Highway in the Pacific Northwest region of the United States that travels through parts of Washington and Oregon. It runs from its northwestern terminus at I-90 in Ellensburg, Washington, to its southeaste ...
that ends at the Columbia River in Umatilla. Other major east–west routes include
U.S. Route 26 U.S. Route 26 (US 26) is an east–west United States highway that runs from Seaside, Oregon to Ogallala, Nebraska. When the U.S. highway system was first defined, it was limited to Nebraska and Wyoming; by the 1950s, it continued into Idaho and ...
,
U.S. Route 30 U.S. Route 30 or U.S. Highway 30 (US 30) is an east–west main route in the system of the United States Numbered Highways, with the highway traveling across the northern tier of the country. With a length of , it is the third longest ...
,
U.S. Route 20 U.S. Route 20 or U.S. Highway 20 (US 20) is an east–west United States Numbered Highway that stretches from the Pacific Northwest east to New England. The "0" in its route number indicates that US 20 is a major coast-to-coast route. S ...
and
U.S. Route 730 U.S. Route 730 (US 730) is an east–west United States Highway, of which all but 6.08 miles of its 41.78 miles (9.78 of 67.24 km) are within the state of Oregon. The highway starts in rural Morrow County in Eastern Or ...
.
U.S. Route 395 U.S. Route 395 (US 395) is a U.S. Route in the western United States. The southern terminus of the route is in the Mojave Desert at Interstate 15 near Hesperia. The northern terminus is at the Canada–US border near Laurier, where the road ...
is a major north–south route, passing through Pendleton, Burns, John Day, and Lakeview. Further west, U.S. Route 97 runs north and south from the California border through
Klamath Falls Klamath Falls ( ) is a city in and the county seat of Klamath County, Oregon, United States. The city was originally called ''Linkville'' when George Nurse founded the town in 1867. It was named after the Link River, on whose falls the city was ...
, Bend, and Redmond to Biggs Junction on the Columbia River.


See also

*
Regions of Oregon This is a list of regions in the U.S. state of Oregon. List See also * List of ecoregions in Oregon * List of regions of the United States This is a list of some of the ways ''regions'' is defined in the United States. Many regions are def ...


References

{{Coord, 44.182204, -118.652344, region:US-OR_dim:300km, display=title Regions of Oregon Geography of Union County, Oregon Geography of Umatilla County, Oregon Geography of Morrow County, Oregon Geography of Wallowa County, Oregon Geography of Grant County, Oregon Geography of Baker County, Oregon Geography of Harney County, Oregon Geography of Malheur County, Oregon