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McElmo Creek
Creek
in
Canyons of the Ancients NM
,
Navajo Nation Reservation
,
Colorado Plateau
,
Ute Mountain Reservation
,
Hawkins Preserve
in
Aneth
in
CO
,
UT
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Length
70mi
On the Web
On Wikipedia
McElmo Creek is a 70.1-mile-long (112.8 km) tributary that joins the San Juan River in San Juan County, Utah. The creek's source is just east of Cortez in Montezuma County, Colorado. The flow in McElmo Creek increased after water was diverted out of the Dolores River just downstream of Dolores by construction of the Montezuma Tunnel in 1889. The Montezuma Tunnel and the subsequent project including Lake McPhee irrigated the dry Montezuma Valley. This irrigation resulted in new water flows to McElmo Creek from flood irrigation waste water, from canal leakage and sluicing and from higher ground water levels. The U.S. Fish and Wildlife Service installed a PIT antenna on McElmo Creek in 2012. The antenna monitors movement of tagged endangered fishes.
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