Hoosier Pass (elevation ) is a high
mountain pass
A mountain pass is a navigable route through a mountain range or over a ridge. Since mountain ranges can present formidable barriers to travel, passes have played a key role in trade, war, and both Human migration, human and animal migration t ...
in central
Colorado
Colorado is a U.S. state, state in the Western United States. It is one of the Mountain states, sharing the Four Corners region with Arizona, New Mexico, and Utah. It is also bordered by Wyoming to the north, Nebraska to the northeast, Kansas ...
, in the
Rocky Mountains
The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...
of the
western United States
The Western United States (also called the American West, the Western States, the Far West, the Western territories, and the West) is List of regions of the United States, census regions United States Census Bureau.
As American settlement i ...
. The name derives from the
Hoosier Gulch, which was worked by men from
Indiana
Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...
, nicknamed the "
Hoosier
Hoosier is the official demonym for the people of the U.S. state of Indiana. The origin of the term remains a matter of debate; however, "Hoosier" was in general use by the 1840s, having been popularized by Richmond resident John Finley's 1833 ...
State".

The pass is located on the
Continental Divide
A continental divide is a drainage divide on a continent such that the drainage basin on one side of the divide feeds into one ocean or sea, and the basin on the other side either feeds into a different ocean or sea, or else is endorheic, not ...
at the northern end of the
Mosquito Range
The Mosquito Range (elevation approximately 14,000 ft) is a high mountain range in the Rocky Mountains of central Colorado in the United States. The peaks of the range form a ridge running north–south for roughly 40 mi (64 km) fr ...
, in a gap between
Mount Lincoln Mount Lincoln may refer to one of various mountains located in the United States:
{{Mountainindex, Lincoln ...
(west) and
Hoosier Ridge (east). It sits on the boundary between
Park
A park is an area of natural, semi-natural or planted space set aside for human enjoyment and recreation or for the protection of wildlife or natural habitats. Urban parks are urban green space, green spaces set aside for recreation inside t ...
(south) and
Summit
A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme, apex, peak (mountain peak), and zenith are synonymous.
The term (mountain top) is generally used only for ...
(north) counties.
The pass provides a route between the headwaters of the
Blue River (tributary of the
Colorado River
The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...
) to the north and the headwaters of the
South Platte River
The South Platte River is one of the two principal tributaries of the Platte River. Flowing through the U.S. states of Colorado and Nebraska, it is itself a major river of the American Midwestern United States, Midwest and the American Sou ...
in
South Park
''South Park'' is an American animated sitcom created by Trey Parker and Matt Stone, and developed by Brian Graden for Comedy Central. The series revolves around four boysStan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormickand the ...
to the south. It is traversed by
State Highway 9 between the towns of
Breckenridge (north) and
Fairplay
FairPlay is a family of digital rights management (DRM) technologies developed by Apple Inc. for protecting videos, books and apps and historically for music.
Music
The initial version of FairPlay was created to protect music on the iTunes S ...
(south).
The highway over the pass provides an alternative route from
Denver
Denver ( ) is a List of municipalities in Colorado#Consolidated city and county, consolidated city and county, the List of capitals in the United States, capital and List of municipalities in Colorado, most populous city of the U.S. state of ...
to the
ski areas
A ski resort is a resort developed for skiing, snowboarding, and other winter sports. In Europe, most ski resorts are towns or villages in or adjacent to a ski area–a mountainous area with pistes (ski trails) and a ski lift system. In North ...
near Breckenridge and
Keystone. It is generally open all year round, is traversable by all vehicles in good weather, but is occasionally closed during winter storms. The road over the pass has a smooth approach on the south side but has several switchbacks on the north side with a
grade
Grade most commonly refers to:
* Grading in education, a measurement of a student's performance by educational assessment (e.g. A, pass, etc.)
* A designation for students, classes and curricula indicating the number of the year a student has reach ...
of 8%.
This pass is the highest point on the
TransAmerica Trail
U.S. Bicycle Route 76 (USBR 76) is a cross-country bicycle route east of Colorado in the United States. It is one of the two original U.S. Bicycle Routes, the other being U.S. Bicycle Route 1. USBR 76 runs from the Midwestern state of Kansas ...
, a transcontinental bicycle route that stretches from
Yorktown, Virginia
Yorktown is a town in York County, Virginia, United States. It is the county seat of York County, one of the eight original shires formed in Colony of Virginia, colonial Virginia in 1682. Yorktown's population was 195 as of the 2010 census, while ...
to
Astoria, Oregon
Astoria is a Port, port city in and the county seat of Clatsop County, Oregon, United States. Founded in 1811, Astoria is the oldest city in the state and was the first permanent American settlement west of the Rocky Mountains. The county is the ...
.
Water diversion
Hoosier Pass is the location of the oldest known
transbasin diversion
Interbasin transfer or transbasin diversion are (often hyphenated) terms used to describe man-made conveyance schemes which move water from one river basin where it is available, to another basin where water is less available or could be utilized ...
project in Colorado, a ditch diverting water from a tributary of the
Blue River to the Middle Fork of the
South Platte River
The South Platte River is one of the two principal tributaries of the Platte River. Flowing through the U.S. states of Colorado and Nebraska, it is itself a major river of the American Midwestern United States, Midwest and the American Sou ...
. This water was used for
placer mining
Placer mining () is the mining of stream bed deposits for minerals. This may be done by open-pit mining or by various surface excavating equipment or tunneling equipment.
Placer mining is frequently used for precious metal deposits (particularly ...
above
Alma
Alma or ALMA may refer to:
Arts and entertainment
* ''Alma'' (film), a 2009 Spanish short animated film
* ''Alma'', an upcoming film by Sally Potter
* ''Alma'' (Oswald de Andrade novel), 1922
* ''Alma'' (Le Clézio novel), 2017
* ''Alma'' ( ...
. By 1929, the 1.8 mile (2.9 km) East Hoosier Ditch and the 1.3 mile (2 km) West Hoosier Ditch were in operation, able to divert an aggregate 77 cubic feet per second (2.2 m
3/s) of water across the
continental divide
A continental divide is a drainage divide on a continent such that the drainage basin on one side of the divide feeds into one ocean or sea, and the basin on the other side either feeds into a different ocean or sea, or else is endorheic, not ...
.
The City of
Colorado Springs
Colorado Springs is the most populous city in El Paso County, Colorado, United States, and its county seat. The city had a population of 478,961 at the 2020 census, a 15.02% increase since 2010. Colorado Springs is the second-most populous c ...
obtained the water rights to these ditches and constructed the Hoosier Pass Tunnel to replace them as part of the Continental-Hoosier Diversion System. The 10 foot (3 m) diameter 1.5 mile (2.4 km)
water tunnel was completed in 1951 and delivers up to 500 cubic feet per second (14.2m
3/s) to
Montgomery Reservoir about a mile southwest of the pass, from which the water is piped 70 miles (113 km) to Colorado Springs. Average annual diversions through the tunnel have been on the order of 9000 acre feet (11 million m
3).
[John N. Winchester]
A Historical View: Transmountain Development in Colorado
, 2000; retrieved July, 2015.
Another pass
There is another Hoosier Pass in Colorado (elevation ) located in
Teller County, near
Cripple Creek.
Climate
Hoosier Pass has a
subarctic climate
The subarctic climate (also called subpolar climate, or boreal climate) is a continental climate with long, cold (often very cold) winters, and short, warm to cool summers. It is found on large landmasses, often away from the moderating effects of ...
(
Köppen Köppen is a German surname. Notable people with the surname include:
* Bernd Köppen (1951–2014), German pianist and composer
* Carl Köppen (1833-1907), German military advisor in Meiji era Japan
* Edlef Köppen (1893–1939), German author ...
''Dfc'').
See also
*
Hoosier Pass ipomopsis
References
{{reflist
Mountain passes of Colorado
Landforms of Park County, Colorado
Landforms of Summit County, Colorado
Great Divide of North America
Transportation in Park County, Colorado
Transportation in Summit County, Colorado