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Black Eagle Dam
Black Eagle Dam is a hydroelectric gravity weir dam located on the Missouri River in the city of Great Falls, Montana. The first dam on the site, built and opened in 1890, was a timber-and-rock crib dam.Peterson, p. 59. This structure was the first hydroelectric dam built in Montana and the first built on the Missouri River. The dam helped give the city of Great Falls the nickname "The Electric City." A second dam, built of concrete in 1926 and opened in 1927, replaced the first dam, which was not removed and lies submerged in the reservoir. Almost unchanged since 1926, the dam is long and high,PPL Montana, Form S-4, p. A-23. and its powerhouse contains three turbines capable of generating seven megawatts (MW) of power each. The maximum power output of the dam is 18 MW. Montana Power Company built the second dam, PPL Corporation purchased it in 1997 and sold it to NorthWestern Corporation in 2014. The reservoir behind the dam has no official name, but was called the Long Pool fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missouri River
The Missouri River is a river in the Central United States, Central and Mountain states, Mountain West regions of the United States. The nation's longest, it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Mountains of southwestern Montana, then flows east and south for before entering the Mississippi River north of St. Louis, Missouri. The river drains Semi-arid climate, semi-arid Drainage basin, watershed of more than 500,000 square miles (1,300,000 km2), which includes parts of ten U.S. states and two Canadian provinces. Although a tributary of the Mississippi, the Missouri River is slightly longer and carries a comparable volume of water, though a fellow tributary (Ohio River) carries more water. When combined with the lower Mississippi River, it forms the List of rivers by length, world's fourth-longest river system. For over 12,000 years, people have depended on the Missouri River and its Tributary, tributaries as a source of sustena ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fall Line
A fall line (or fall zone) is the area where an upland region and a coastal plain meet and is noticeable especially the place rivers cross it, with resulting rapids or waterfalls. The uplands are relatively hard crystalline basement rock, and the coastal plain is softer sedimentary rock. A fall line often will recede upstream as a river cuts out the uphill dense material, forming "c"-shaped waterfalls and exposing bedrock shoals. Due to these features, riverboats typically cannot travel any further inland without portaging, unless locks are built. The rapid change of elevation of the water and resulting energy release make the fall line a good location for water mills, grist mills, and sawmills. Seeking a head of navigation with a ready supply of water power, people have long made settlements where rivers cross a fall line. Geography The slope of rivers crossing fall zones affected settlement patterns. For example, the fall line represents the inland limit of navigation of ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northern Pacific Railway
The Northern Pacific Railway was an important American transcontinental railroad that operated across the northern tier of the Western United States, from Minnesota to the Pacific Northwest between 1864 and 1970. It was approved and chartered by the 38th Congress of the United States in the national / federal capital of Washington, D.C., during the last years of the American Civil War (1861-1865), and received nearly of adjacent land grants, which it used to raise additional money in Europe (especially in President Henry Villard's home country of the new German Empire), for construction funding. Construction began in 1870 and the main line opened all the way from the Great Lakes to the Pacific Ocean, just south of the United States-Canada border when Ulysses S. Grant, drove in the final "golden spike" completing the line in western Montana Territory (future State of Montana in 1889), on September 8, 1883. The railroad had about of track and served a large area, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locating Engineer
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Schuylkill River
The Schuylkill River ( , ) is a river in eastern Pennsylvania. It flows for U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map(). accessed April 1, 2011. from Pottsville, Pennsylvania, Pottsville southeast to Philadelphia, the nation's sixth-largest city, where it joins the Delaware River as one of its largest tributaries. The river's Drainage basin, watershed of about lies entirely within the state of Pennsylvania, stretching from the Ridge-and-Valley Appalachians through the Piedmont (United States), Piedmont to the Atlantic Plain. Historically the Schuylkill lay within the territory of the Susquehannock and Lenape peoples. In 1682, William Penn founded the city of Philadelphia between the Schuylkill and Delaware rivers on lands purchased from the Lenape Indian tribe. The Schuylkill River became key in the development of the city and the surrounding region. While long used for transport, the river was made fully navigable via ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Falls (Potomac River)
Great Falls is a series of rapids and waterfalls on the Potomac River, upstream from Washington, D.C., on the border of Montgomery County, Maryland and Fairfax County, Virginia. The Potomac and the falls themselves are legally entirely within Maryland, since the state's border follows the south bank of the river. Great Falls Park, managed as part of George Washington Memorial Parkway, is on the southern banks in Virginia, and Chesapeake and Ohio Canal National Historical Park parkland is along the northern banks of the river in Maryland. Both are operated by the National Park Service. The Great Falls area is popular for outdoor activities such as kayaking, whitewater rafting, rock climbing, and hiking. The Billy Goat Trail on Bear Island, Maryland, Bear Island, and Olmsted Island, both accessible from Maryland, offer scenic views of the Great Falls. There also are overlook points on the Virginia side. Great Falls and Little Falls (Potomac River), Little Falls (about 5 miles dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewis And Clark Expedition
The Lewis and Clark Expedition, also known as the Corps of Discovery Expedition, was the United States expedition to cross the newly acquired western portion of the country after the Louisiana Purchase. The Corps of Discovery was a select group of U.S. Army and civilian volunteers under the command of Captain Meriwether Lewis and his close friend Second Lieutenant William Clark. Clark, along with 30 others, set out from Camp Dubois (Camp Wood), Illinois, on May 14, 1804, met Lewis and ten other members of the group in St. Charles, Missouri, then went up the Missouri River. The expedition crossed the Continental Divide of the Americas near the Lemhi Pass, eventually coming to the Columbia River, and the Pacific Ocean in 1805. The return voyage began on March 23, 1806, at Fort Clatsop, Oregon, ending six months later on September 23 of that year. President Thomas Jefferson commissioned the expedition, shortly after the Louisiana Purchase of 1803, to explore and detail as much of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meriwether Lewis
Meriwether Lewis (August 18, 1774 – October 11, 1809) was an American explorer, soldier, politician, and public administrator, best known for his role as the leader of the Lewis and Clark Expedition, also known as the Corps of Discovery, with William Clark. Their mission was to explore the territory of the Louisiana Purchase, establish trade with, and sovereignty over the natives near the Missouri River, and claim the Pacific Northwest and Oregon Country for the United States before European nations. They also collected scientific data and information on indigenous nations. President Thomas Jefferson appointed him Governor of Upper Louisiana in 1806. He died in 1809 of gunshot wounds, in what was either a murder or suicide. Life and work Meriwether Lewis was born August 18, 1774, on Locust Hill Plantation in Albemarle County, Virginia, Albemarle County, Colony of Virginia, in the present-day community of Ivy, Virginia, Ivy. He was the son of William Lewis, of Welsh ancestry, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Native Americans In The United States
Native Americans (also called American Indians, First Americans, or Indigenous Americans) are the Indigenous peoples of the Americas, Indigenous peoples of the United States, particularly of the Contiguous United States, lower 48 states and Alaska. They may also include any Americans whose origins lie in any of the indigenous peoples of North or South America. The United States Census Bureau publishes data about "American Indians and Alaska Natives", whom it defines as anyone "having origins in any of the original peoples of North and South America ... and who maintains tribal affiliation or community attachment". The census does not, however, enumerate "Native Americans" as such, noting that the latter term can encompass a broader set of groups, e.g. Native Hawaiians, which it tabulates separately. The European colonization of the Americas from 1492 resulted in a Population history of Indigenous peoples of the Americas, precipitous decline in the size of the Native American ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackfeet
The Blackfeet Nation (, ), officially named the Blackfeet Tribe of the Blackfeet Indian Reservation of Montana, is a federally recognized tribe of Siksikaitsitapi people with an Indian reservation in Montana. Tribal members primarily belong to the Piegan Blackfeet (Ampskapi Piikani) band of the larger Blackfoot Confederacy that spans Canada and the United States. The Blackfeet Indian Reservation is located east of Glacier National Park and borders the Canadian province of Alberta. Cut Bank Creek and Birch Creek form part of its eastern and southern borders. The reservation contains 3,000 square miles (7,800 km2), twice the size of the national park and larger than the state of Delaware. It is located in parts of Glacier and Pondera counties. History The Blackfeet claim to have lived on the Northern Great Plains for thousands of years. Through raids in the Southern Plains and trade with the Cree, they eventually acquired firearms and horses. They were a powerful fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mandan
The Mandan () are a Native American tribe of the Great Plains who have lived for centuries primarily in what is now North Dakota. They are enrolled in the Three Affiliated Tribes of the Fort Berthold Reservation. About half of the Mandan still reside in the area of the reservation; the rest reside around the United States and in Canada. The Mandan historically lived along both banks of the Upper Missouri River and two of its tributaries—the Heart and Knife rivers—in present-day North and South Dakota. Speakers of Mandan, a Siouan language, they developed a settled, agrarian culture. They established permanent villages featuring large, round, earth lodges, some in diameter, surrounding a central plaza. Matrilineal families lived in the lodges. The Mandan were a great trading nation, trading especially their large corn surpluses with other tribes in exchange for bison meat and fat. Food was the primary item, but they also traded for horses, guns, and other trade goods. P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's surface. Like uncemented sand, sandstone may be imparted any color by impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Because sandstone beds can form highly visible cliffs and other topography, topographic features, certain colors of sandstone have become strongly identified with certain regions, such as the red rock deserts of Arches National Park and other areas of the Southwestern United States, American Southwest. Rock formations composed of sandstone usually allow the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
