Boulder Creek (Colorado)
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Boulder Creek is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data
The National Map
, accessed March 25, 2011
creek draining 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 ...
to the west of
Boulder, Colorado Boulder is a List of municipalities in Colorado#Home rule municipality, home rule city in Boulder County, Colorado, United States, and its county seat. With a population of 108,250 at the 2020 United States census, 2020 census, it is the most ...
, as well as the city itself and surrounding plains.


Route

The creek is formed by two main tributaries rising along 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 ...
: North and Middle Boulder Creek; and later joined by South Boulder Creek. North Boulder Creek forms in a valley between Navajo Peak and Arikaree Peak on the Continental Divide, in the Green Lakes chain of lakes. The creek flows past the community of Switzerland Park to join Middle Boulder Creek. Middle Boulder Creek rises as two forks from the Continental Divide: the North Fork rises in a cirque below Mount Neva and flows to the South Fork. The South Fork rises at Rollins Pass on the Continental Divide and flows to the North Fork. From the junction of the two forks, Middle Boulder Creek, long, flows east through the towns of Eldora and Nederland into Barker Meadow Reservoir, a water supply for the city of Boulder, before joining North Boulder Creek to form the main stem of Boulder Creek. From its source at the
confluence In geography, a confluence (also ''conflux'') occurs where two or more watercourses join to form a single channel (geography), channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main ...
of the North and Middle Boulder forks, Boulder Creek flows down Boulder Canyon and through downtown Boulder. On the east edge of the city, the creek receives South Boulder Creek, which rises at Rogers Pass on the Continental Divide, just south of the Moffat Tunnel. South Boulder Creek flows through Rollinsville, Gross Reservoir, and Eldorado Canyon before leaving the mountains and curving past the south and east sides of Boulder to its
mouth A mouth also referred to as the oral is the body orifice through which many animals ingest food and animal communication#Auditory, vocalize. The body cavity immediately behind the mouth opening, known as the oral cavity (or in Latin), is also t ...
at Boulder Creek. After leaving the city, Boulder Creek flows northeast into Weld County, where it joins St. Vrain Creek, and on to a confluence with 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 ...
. Its waters ultimately flow into the
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 Moun ...
and
Mississippi River The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...
and, ultimately, the
Gulf of Mexico The Gulf of Mexico () is an oceanic basin and a marginal sea of the Atlantic Ocean, mostly surrounded by the North American continent. It is bounded on the northeast, north, and northwest by the Gulf Coast of the United States; on the southw ...
.


Recreation

Boulder Creek is a summer recreational spot for outdoor activities including tubing,
fly fishing Fly fishing is an angling technique that uses an ultra-lightweight lure called an artificial fly, which typically mimics small invertebrates such as flying and aquatic insects to attract and catch fish. Because the mass of the fly lure is in ...
, and wading. The annual Boulder Creek Festival, held along the creekside civic area between the library and Central Park, opens the summer season on Memorial Day weekend.


Fish species

Fish surveys from 1990, 1995, and 2006 found the following species of fish in Boulder Creek.Steinmann, D. B., & Windell, J. T. (1990). Boulder Creek Fish Survey Application of Rabid Bioassessment Protocol V-Fish and The Index of Biotic Integrity at Boulder Creek Before and After Implementation Of Best Management Practices. E.P.O. Biology University of Colorado.


See also

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List of rivers of Colorado This is a list of rivers and streams in the United States, U.S. Colorado, State of Colorado. ##Alphabetical list, Alphabetical list ##Tributary chart, Tributary chart __TOC__ Alphabetical list The following alphabetical list includes many import ...
*
Bibliography of Colorado This is a bibliography of the U.S. State of Colorado. __TOC__ General history * * * * * * * * * * * * * * * * * * * * * * * *Sibley, George. ''Water Wranglers - The 75-Year History of the Colorado River District: A Story About the Embattled Co ...
*
Geography of Colorado The geography of the U.S. State of Colorado is diverse, encompassing rugged mountainous terrain, vast plains, desert lands, desert canyons, and mesas. Colorado is a landlocked U.S. state. In 1861, the United States Congress defined the boun ...
*
History of Colorado The region that is today the U.S. state of Colorado has been inhabited by Native Americans and their Paleoamerican ancestors for at least 13,500 years and possibly more than 37,000 years. The eastern edge of the Rocky Mountains was a major mi ...
*
Index of Colorado-related articles This is an alphabetical list of articles related to the U.S. State of Colorado. 0–9 * .co.us – Internet second-level domain for the State of Colorado * 4 Corners ** 4 Corners Monument * 6th Principal Meridian * 10-mile Range * 10 ...
*
List of Colorado-related lists The following two master lists include links to lists related to the United States, U.S. Colorado, State of Colorado. #Colorado-related lists by topic #Alphabetical list of Colorado-related lists Colorado-related lists by topic General lists *Bib ...
*
Outline of Colorado The following Outline (list), outline is provided as an overview of and topical guide to the U.S. state of Colorado: Colorado – List of U.S. states and territories by population#State and territory rankings, 22nd most populous, the Lis ...


References


External links


Boulder Creek Report
{{authority control Rivers of Colorado Tributaries of the Platte River Rivers of Boulder County, Colorado