Utah's Water Quality
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  • Home
    • Utah Watershed Contact List
    • Utah Watershed Partners
  • Projects
    • Success Stories
    • Funding
  • Media
    • Videos
    • Photo Gallery
  • Data & Reports
    • Final Project Reports
    • Data
  • Outreach
    • Education & Information Ideas
    • Small Acreage Farms
  • NPS Pollution
    • What is nonpoint source pollution?
    • Management of Utah's NPS Pollution
    • Best Management Practices
    • Assessment and Monitoring
    • The Status of Utah's Waterbodies
  • Find Your Watershed
    • Bear River Watershed
    • Uinta Basin Watershed
    • Utah Lake / Jordan River Watershed
    • Great Salt Lake Watershed
    • Western Colorado Watershed
    • Weber River Watershed
    • Cedar/Beaver Watershed
    • Lower Colorado Watershed
    • Southeast Colorado Watershed
    • Sevier River Watershed

Lower colorado river watershed

contacts
Projects
final reports
Interesting Facts

Overview

The Lower Colorado River Watershed is located in the southwest of the United States, covering parts of Utah, Arizona, New Mexico, Nevada, and California. The portion in southern Utah is comprised of four sub-basins: the Upper Virgin River, the Lower Virgin River, the Fort Pierce Wash, and the Kanab. The area spans over 3,400 square miles and elevation ranges from 2,100 feet to 10,500 feet. Precipitation per year ranges from 6-8 inches in the valleys to 35 inches in the mountains. Flash floods can occur often here due to many sandstone formations. The major river is the Virgin River with several tributaries including the Santa Clara River, LaVerkin Creek, Ash Creek, and North Creek. Other water bodies include Sand Hollow Reservoir, Quail Creek Reservoir, Kolob Reservoir, and Kanab Creek. Major water uses include drinking water, wildlife, recreation, agriculture, and irrigation. Natural conditions of erosion contributes high dissolved solids, selenium, and salinity levels, while hot springs increase water temperature.
Fact Sheets:
Virgin/Santa Clara River Watershed
Picture
Picture
Picture
North Fork, Virgin River, Ut
Other Links:
  • Virgin River Watershed Management Plan
  • Virgin River Watershed TMDL
  • Virgin River Program

Utah Division of Water Quality

USU Water Quality Extension

Utah Department of Agriculture and Food

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