Trout Creek Pass, elevation , is a

mountain pass A mountain pass is a navigable route through a mountain range or over a ridge. Since many of the world's mountain ranges have presented formidable barriers to travel, passes have played a key role in trade, war, and both Human migration, human a ...

located 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 straight-line distance from the northernmost part of western Canada, to New Mexico in ...

of south-central

Colorado Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of t ...

in 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 territorie ...

. The pass sits atop the southern 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 ...

on the

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 ...

- Chaffee county line, between

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 boys Stan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormickand th ...

(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 Sout ...

to the east) and the headwaters of the

Arkansas River The Arkansas River is a major tributary of the Mississippi River. It generally flows to the east and southeast as it traverses the U.S. states of Colorado, Kansas, Oklahoma, and Arkansas. The river's source basin lies in the western United Stat ...

to the west. It is traversed jointly by U.S. Highway 24 (US 24) (between Hartsel and

Buena Vista Buena Vista, meaning "good view" in Spanish, may refer to: Places Canada *Bonavista, Newfoundland and Labrador, with the name being originally derived from “Buena Vista” *Buena Vista, Saskatchewan *Buena Vista, Saskatoon, a neighborhood in ...

) and US 285 (between

Fairplay FairPlay is a digital rights management (DRM) technology developed by Apple Inc. It is built into the MPEG-4 Part 14, MP4 multimedia file format as an encrypted Advanced Audio Coding, AAC audio layer, and was used until April 2009 by the company ...

and Buena Vista). It is passable by most motorized vehicles and is closed only during severe winter storms. The approach from the north is mild, while the south side has a moderate 5% grade. Curiously, the elevation stated on the highway sign at the summit (see attached picture) appears to be in error by about , as it disagrees with well-established topographic maps as well as published data.

Geologically Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Eart ...

, the pass is located on a fault that runs along the

. Road cuts along the eastern approach to the pass reveal Pennsylvanian black

shale Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4) and tiny fragments (silt-sized particles) of other minerals, especial ...

and thin gray

limestone Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms whe ...

layers that were laid down prior to the creation of the Ancestral Rockies. These

Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ' ...

layers were not uplifted during the creation of the Ancestral Rockies approximately 300 MYA and thus were not eroded to the same degree as other areas to the east and west. The pass was traversed by the

Denver, South Park and Pacific Railroad The Denver, South Park, and Pacific Railroad (later called the Denver, Leadville and Gunnison Railway) was a historic narrow gauge railroad that operated in Colorado in the western United States in the late 19th century. The railroad opened up the ...

in 1879, providing the first rail link between

Denver Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the Unit ...

and

Leadville The City of Leadville is a statutory city that is the county seat, the most populous community, and the only incorporated municipality in Lake County, Colorado, United States. The city population was 2,602 at the 2010 census and an estimated ...

in the early days of the

Colorado Silver Boom The Colorado Silver Boom was a dramatic expansionist period of silver mining activity in the U.S. state of Colorado in the late 19th century. The boom started in 1879 with the discovery of silver at Leadville. Over 82 million dollars worth of silv ...

. The

Colorado Midland The Colorado Midland Railway , Railway Equipment and Publication CompanyThe Official Railway Equipment Register June 1917, p. 786 incorporated in 1883, was the first standard gauge railroad built over the Continental Divide in Colorado. It ran f ...

also built a line west from Colorado Springs to Leadville over Trout Creek Pass in the 1890s. Both lines fell into disuse in the 1920s. The pass is in the

San Isabel National Forest San Isabel National Forest is located in central Colorado. The forest contains 19 of the state's 53 fourteeners, peaks over high, including Mount Elbert, the highest point in Colorado. It is one of eleven national forests in the state of Color ...

References

{{Reflist

External links

Photos of Trout Creek Pass region
Mountain passes of Colorado Landforms of Park County, Colorado Landforms of Chaffee County, Colorado Denver, South Park and Pacific Railroad U.S. Route 24 U.S. Route 285 Transportation in Chaffee County, Colorado Transportation in Park County, Colorado

See also

References

External links