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Colorado Plateau

Price River

A 100-mile tributary of the Green River draining the Wasatch Plateau and Book Cliffs of central Utah through Castle Valley coal country. ยท UT

Length 100 miles
Class N/A โ€” not a recreational river
Gateway Price, UT
Overview

The Price River drains the eastern Wasatch Plateau and Castle Valley of central Utah, flowing roughly 100 miles east through the coal country of Carbon and Emery counties before joining the Green River at Woodside, just upstream of Desolation Canyon. It is the largest tributary entering the Green between the Duchesne River and the San Rafael. The Price carries heavy sediment loads from the soft Mancos Shale and Cretaceous coal-bearing formations of the Book Cliffs, and its flows are heavily influenced by irrigation diversions and mine drainage. During spring runoff the river can flash from a trickle to a torrent in hours.

Signature Experiences

  • Book Cliffs escarpment views from Highway 6 corridor
Geology

The Price River cuts through the Cretaceous-age Book Cliffs, a 200-mile escarpment of coal-bearing sandstone and shale that marks the ancient shoreline of the Western Interior Seaway. The river's name was applied to the Price River Formation, a significant late Cretaceous unit in the region.

Rock types
shale sandstone coal
Formations
Mancos Shale Star Point Sandstone Blackhawk Formation (coal-bearing) Castlegate Sandstone Price River Formation North Horn Formation

Age range: Late Cretaceous through early Tertiary

Ecology

Water quality in the lower Price River is impacted by mine drainage, agricultural return flows, and high natural salinity from Mancos Shale dissolution. Selenium concentrations are monitored as part of the Colorado River Basin salinity control program.

Biomes
montane forest (headwaters) sagebrush steppe (middle valley) Colorado Plateau desert scrub (lower canyon)
Notable species
roundtail chub (Gila robusta) flannelmouth sucker (Catostomus latipinnis) mule deer golden eagle
Invasive species
tamarisk (Tamarix ramosissima)
History
Indigenous homelands
Ute Nation โ€” Uinta Band Fremont Culture (ancestral)
Explorers
John Wesley Powell Howard Stansbury
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