Stream Gauges

Colorado River

• Colorado River near Cameo, COUSGS 09095500
  Primary Colorado River gauge for Ruby-Horsethief planning and the upper Colorado River canyon system near Grand Junction. Readings here reflect Gunnison River contributions and upper Colorado snowmelt patterns.
• Colorado River Near Cisco, UTUSGS 09180500
  Primary upstream Colorado River gauge used in Westwater and Moab Daily runoff interpretation.
• Colorado River at Potash, UTUSGS 09185600
  USGS gauge measuring discharge and gage height on the Colorado River at Potash, UT — downstream of the Moab valley and upstream of the Confluence. Reads the Colorado’s contribution at the Potash put-in; sum it with the Green at Mineral Bottom for the combined flow that reaches Cataract Canyon.
• Colorado River at Gypsum Canyon, UTUSGS 09328960
  USGS gauge measuring discharge on the Colorado River at the mouth of Gypsum Canyon, near Hite — below the Big Drops sequence and in the reservoir-influenced lower miles of Cataract Canyon. Reads the combined Colorado + Green flow after the Confluence and after the Cataract whitewater corridor.
• Colorado River above the Dirty Devil River, near Hite, UTUSGS 09328990
  USGS gauge on the Colorado immediately above the Dirty Devil confluence, sited essentially at the North Wash take-out — the closest instrument DM has to the ramp itself. It records GAGE HEIGHT ONLY: there is no discharge series at this site, and none has ever been published. Read it as the river's stage at the take-out, never as a flow.
• Lake Powell at Glen Canyon Dam, AZUSGS 09379900
  Reservoir gauge at Glen Canyon Dam reporting the water-surface elevation of Lake Powell. It measures no flow and answers no whitewater question — it is here because a reservoir surface is level, so this one number is equally true at the dam, at Bullfrog, and at the drowned head of the pool somewhere above Hite. Read against the Hite bridge gauge, it is the bottom of the subtraction that tells a boater below Cataract how much river is actually left.
• Colorado River at Lees Ferry, AZUSGS 09380000
• Colorado River above Diamond Creek, AZUSGS 09404200

Dolores River

• Dolores River near Cisco, UTUSGS 09180000
  USGS gauge on the lower Dolores River above its confluence with the Colorado at Dewey. The Dolores is the last significant tributary entering the Colorado before the Moab Daily, so this reading is summed with Colorado near Cisco (09180500) to estimate the water actually in the Daily. Dam-controlled by McPhee Reservoir far upstream, the Dolores can spike hard during spring spill years and run near-dry otherwise — the sum matters most in May and June.

Escalante River

• Pine Creek Near Escalante, UTUSGS 09337000
• Escalante River near Escalante, UTUSGS 09337500
• Deer Creek Near Boulder, UTUSGS 09338900
• Boulder Creek Near Boulder, UTUSGS 09339000

Green River

• Green River near Greendale, UTUSGS 09234500
  Historical Green River gauge above Flaming Gorge reservoir area. Primary reference for Gates of Lodore trip planning when used in context with current downstream releases.
• Green River at Jensen, UTUSGS 09261000
  Primary operational gauge for planning Split Mountain Canyon floats. Located near Jensen, UT, below Dinosaur National Monument, this gauge integrates snowmelt from the Uinta Basin watershed and is the most direct reading for Split Mountain and lower Lodore trip planning.
• Green River at Ouray, UTUSGS 09272400
  USGS gauge on the Green at Ouray — the last gauge above the Sand Wash put-in, and Desolation Canyon's primary for that reason. It sits above the Duchesne and White confluences, so the canyon runs somewhat above what Ouray reads; the town gauge at Green River sits below the take-out and the Price River, so it reads higher still. Nothing is gauged in between.
• Green River at Green River, UTUSGS 09315000
  Long-running reference gauge on the lower Green River at the town of Green River, Utah — below the Desolation–Gray run and the Price River confluence.
• Green River at Mineral Bottom, UTUSGS 09328920
  USGS gauge measuring discharge and gage height on the Green River at Mineral Bottom, near the Canyonlands National Park boundary. Sits at the take-out for Labyrinth Canyon and the put-in for Stillwater Canyon — the Green-side launch point for Cataract Canyon trips. Reads the Green's contribution to the Confluence at the actual put-in.

Jordan River

• Jordan River at The Narrows near Lehi, UTUSGS 10167000
• Little Cottonwood Creek near Salt Lake City, UTUSGS 10167500
• Big Cottonwood Creek near Salt Lake City, UTUSGS 10168500
• Red Butte Creek at Fort Douglas near Salt Lake City, UTUSGS 10172200
• Jordan River at Salt Lake City, UTUSGS 10171000

San Juan River

• San Juan River near Bluff, UTUSGS 09379500

Yampa River

• Yampa River near Maybell, COUSGS 09251000
  Primary Yampa River gauge for trip planning on Yampa Canyon through Dinosaur National Monument. Located upstream of the canyon, this gauge reflects snowmelt patterns from the Elkhead and Flat Top Mountains and drives permit applicant decision-making for the narrow runnable season.
• Yampa River at Deerlodge Park, COUSGS 09260050
  The at-the-canyon Yampa gauge, located at Deerlodge Park — the Yampa Canyon put-in — below the Little Snake River confluence. Because it captures the Little Snake's inflow (which enters below the Maybell gauge), it reflects the water actually running through the canyon and over Warm Springs Rapid, and reads substantially higher than Maybell. Use it for flow at Warm Springs; use Maybell for the broader upstream snowmelt trend.