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Check a river’s flow.

Search any USGS stream gauge by river or station name, by state, or near you. Each card shows the latest flow and how it compares with the normal range for today’s date; open a gauge for the full picture: trend, water temperature and what it means for trout, safety and the official NWS flood stage.

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Colorado River, Arizona

COLORADO RIVER NEAR GRAND CANYON, AZ

USGS 09402500

Limited data: Normal flow for the date: no water temperature here

No water temperature here.

Discharge: 12,500 ft³/s
Gauge height: 16.7 ft

Above normal for Nov 5 Steady · 24 h

Last 7 days

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 5:15 PM MST	12,500	16.7
Nov 5, 4:15 PM MST	12,700	16.8
Nov 5, 3:15 PM MST	12,900	16.9
Nov 5, 2:15 PM MST	12,900	16.9
Nov 5, 1:15 PM MST	12,900	16.9
Nov 5, 12:15 PM MST	12,700	16.8
Nov 5, 11:15 AM MST	12,500	16.8
Nov 5, 10:15 AM MST	12,200	16.7
Nov 5, 9:15 AM MST	11,800	16.6
Nov 5, 8:15 AM MST	11,200	16.4
Nov 5, 7:15 AM MST	10,700	16.2
Nov 5, 6:15 AM MST	10,200	16
Nov 5, 5:15 AM MST	9,880	15.9
Nov 5, 4:15 AM MST	9,780	15.8
Nov 5, 3:15 AM MST	9,780	15.8
Nov 5, 2:15 AM MST	9,880	15.9
Nov 5, 1:15 AM MST	10,000	15.9
Nov 5, 12:15 AM MST	10,200	16
Nov 4, 11:15 PM MST	10,500	16.1
Nov 4, 10:15 PM MST	10,800	16.2
Nov 4, 9:15 PM MST	11,200	16.4
Nov 4, 8:15 PM MST	11,500	16.5
Nov 4, 7:15 PM MST	11,900	16.6
Nov 4, 6:15 PM MST	12,300	16.8
Nov 4, 5:15 PM MST	12,700	16.9
Nov 4, 4:15 PM MST	12,900	17
Nov 4, 3:15 PM MST	13,100	17
Nov 4, 2:15 PM MST	13,100	17.1
Nov 4, 1:15 PM MST	13,000	17.1
Nov 4, 12:15 PM MST	12,800	17
Nov 4, 11:15 AM MST	12,600	16.9
Nov 4, 10:15 AM MST	12,200	16.8
Nov 4, 9:15 AM MST	11,600	16.6
Nov 4, 8:15 AM MST	10,900	16.3
Nov 4, 7:15 AM MST	10,200	16.1
Nov 4, 6:15 AM MST	9,580	15.9
Nov 4, 5:15 AM MST	9,250	15.7
Nov 4, 4:15 AM MST	9,060	15.6
Nov 4, 3:15 AM MST	8,960	15.6
Nov 4, 2:15 AM MST	9,010	15.6
Nov 4, 1:15 AM MST	9,130	15.6
Nov 4, 12:15 AM MST	9,280	15.7
Nov 3, 11:15 PM MST	9,480	15.8
Nov 3, 10:15 PM MST	9,750	15.9
Nov 3, 9:15 PM MST	10,000	16
Nov 3, 8:15 PM MST	10,200	16.1
Nov 3, 7:15 PM MST	10,500	16.1
Nov 3, 6:15 PM MST	10,600	16.2
Nov 3, 5:15 PM MST	10,800	16.3
Nov 3, 4:15 PM MST	10,900	16.3
Nov 3, 3:15 PM MST	11,100	16.4
Nov 3, 2:15 PM MST	11,300	16.4
Nov 3, 1:15 PM MST	11,500	16.5
Nov 3, 12:15 PM MST	11,700	16.5
Nov 3, 11:15 AM MST	11,900	16.6
Nov 3, 10:15 AM MST	12,000	16.6
Nov 3, 9:15 AM MST	12,200	16.7
Nov 3, 8:15 AM MST	12,400	16.7
Nov 3, 7:15 AM MST	12,500	16.8
Nov 3, 6:15 AM MST	12,500	16.8
Nov 3, 5:15 AM MST	12,100	16.6
Nov 3, 4:15 AM MST	11,700	16.5
Nov 3, 3:15 AM MST	11,200	16.3
Nov 3, 2:15 AM MST	10,800	16.2
Nov 3, 1:15 AM MST	10,100	15.9
Nov 3, 12:15 AM MST	9,880	15.8
Nov 2, 11:15 PM MST	10,200	15.9
Nov 2, 10:15 PM MST	10,600	16.1
Nov 2, 9:15 PM MST	11,100	16.2
Nov 2, 8:15 PM MST	11,600	16.4
Nov 2, 7:15 PM MST	12,400	16.7
Nov 2, 6:15 PM MST	13,000	16.9
Nov 2, 5:15 PM MST	13,700	17.1
Nov 2, 4:15 PM MST	14,400	17.3
Nov 2, 3:15 PM MST	15,100	17.5
Nov 2, 2:15 PM MST	15,600	17.7
Nov 2, 1:15 PM MST	16,000	17.8
Nov 2, 12:15 PM MST	15,800	17.8
Nov 2, 11:15 AM MST	14,100	17.3
Nov 2, 10:15 AM MST	11,300	16.3
Nov 2, 9:15 AM MST	9,700	15.7
Nov 2, 8:15 AM MST	8,880	15.4
Nov 2, 7:15 AM MST	8,290	15.2
Nov 2, 6:15 AM MST	7,950	15.1
Nov 2, 5:15 AM MST	7,820	15
Nov 2, 4:15 AM MST	7,840	15
Nov 2, 3:15 AM MST	8,100	15.1
Nov 2, 2:15 AM MST	8,310	15.2
Nov 2, 1:15 AM MST	8,580	15.3
Nov 2, 12:15 AM MST	9,160	15.5
Nov 1, 11:15 PM MST	9,110	15.5
Nov 1, 10:15 PM MST	8,860	15.4
Nov 1, 9:15 PM MST	8,940	15.4
Nov 1, 8:15 PM MST	9,110	15.5
Nov 1, 7:15 PM MST	9,250	15.6
Nov 1, 6:15 PM MST	9,580	15.7
Nov 1, 5:15 PM MST	9,600	15.7
Nov 1, 4:15 PM MST	9,700	15.7
Nov 1, 3:15 PM MST	9,800	15.8
Nov 1, 2:15 PM MST	9,750	15.7
Nov 1, 1:15 PM MST	9,580	15.7
Nov 1, 12:15 PM MST	9,250	15.6
Nov 1, 11:15 AM MST	8,770	15.4
Nov 1, 10:15 AM MST	8,290	15.2
Nov 1, 9:15 AM MST	7,570	14.9
Nov 1, 8:15 AM MST	6,990	14.7
Nov 1, 7:15 AM MST	6,500	14.4
Nov 1, 6:15 AM MST	6,170	14.3
Nov 1, 5:15 AM MST	6,020	14.2
Nov 1, 4:15 AM MST	5,950	14.1
Nov 1, 3:15 AM MST	6,010	14.2
Nov 1, 2:15 AM MST	6,070	14.2
Nov 1, 1:15 AM MST	6,240	14.3
Nov 1, 12:15 AM MST	6,500	14.4
Oct 31, 11:15 PM MST	6,740	14.5
Oct 31, 10:15 PM MST	7,040	14.7
Oct 31, 9:15 PM MST	7,370	14.8
Oct 31, 8:15 PM MST	7,740	14.9
Oct 31, 7:15 PM MST	8,150	15.1
Oct 31, 6:15 PM MST	8,530	15.3
Oct 31, 5:15 PM MST	8,800	15.4
Oct 31, 4:15 PM MST	9,040	15.5
Oct 31, 3:15 PM MST	9,230	15.5
Oct 31, 2:15 PM MST	9,230	15.5
Oct 31, 1:15 PM MST	9,250	15.6
Oct 31, 12:15 PM MST	9,160	15.5
Oct 31, 11:15 AM MST	8,960	15.4
Oct 31, 10:15 AM MST	8,690	15.3
Oct 31, 9:15 AM MST	8,260	15.2
Oct 31, 8:15 AM MST	7,840	15
Oct 31, 7:15 AM MST	7,470	14.9
Oct 31, 6:15 AM MST	7,280	14.8
Oct 31, 5:15 AM MST	7,250	14.8
Oct 31, 4:15 AM MST	7,350	14.8
Oct 31, 3:15 AM MST	7,620	14.9
Oct 31, 2:15 AM MST	7,900	15
Oct 31, 1:15 AM MST	8,210	15.2
Oct 31, 12:15 AM MST	8,530	15.3
Oct 30, 11:15 PM MST	8,800	15.4
Oct 30, 10:15 PM MST	9,110	15.5
Oct 30, 9:15 PM MST	9,450	15.6
Oct 30, 8:15 PM MST	9,750	15.8
Oct 30, 7:15 PM MST	10,100	15.9
Oct 30, 6:15 PM MST	10,400	16
Oct 30, 5:15 PM MST	10,700	16.1
Oct 30, 4:15 PM MST	10,900	16.2
Oct 30, 3:15 PM MST	11,000	16.3
Oct 30, 2:15 PM MST	11,100	16.3
Oct 30, 1:15 PM MST	11,100	16.3
Oct 30, 12:15 PM MST	10,900	16.2
Oct 30, 11:15 AM MST	10,600	16.1
Oct 30, 10:15 AM MST	10,300	16
Oct 30, 9:15 AM MST	9,880	15.8
Oct 30, 8:15 AM MST	9,350	15.6
Oct 30, 7:15 AM MST	8,830	15.4
Oct 30, 6:15 AM MST	8,390	15.2
Oct 30, 5:15 AM MST	8,100	15.1
Oct 30, 4:15 AM MST	8,000	15.1
Oct 30, 3:15 AM MST	8,020	15.1
Oct 30, 2:15 AM MST	8,130	15.1
Oct 30, 1:15 AM MST	8,290	15.2
Oct 30, 12:15 AM MST	8,450	15.3
Oct 29, 11:15 PM MST	8,720	15.4
Oct 29, 10:15 PM MST	9,010	15.5
Oct 29, 9:15 PM MST	9,300	15.6
Oct 29, 8:15 PM MST	9,630	15.7
Oct 29, 7:15 PM MST	9,930	15.8
Oct 29, 6:30 PM MST	10,200	15.9

Reading Nov 5, 5:15 PM MST · checked 6:19 PM MST

Open full screen USGS NWS

COLORADO RIVER NEAR RIVER MILE 30
USGS 09383050
Limited data: Temperature fine for trout: no flow comparison here
No flow statistics here.
Water temp
56.7°F
No flow at this gauge. USGS does not publish discharge here, so there are no flow statistics either; it reports what is shown. Flow on the same river: COLORADO RIVER AT LEES FERRY, AZ (USGS 09380000, 27.5 miles away).
Reading Nov 5, 5:45 PM MST · checked 6:19 PM MST
Open full screen USGS
COLORADO R ABV LITTLE COLORADO R NR DESERT VIEW
USGS 09383100
Limited data: Temperature fine for trout: no flow comparison here
No flow statistics here.
Water temp
57.2°F
No flow here now. USGS stopped publishing discharge at this gauge on Jan 16, 2002; it still reports what is shown. Flow on the same river: COLORADO RIVER NEAR GRAND CANYON, AZ (USGS 09402500, 17.4 miles away).
Reading Nov 5, 5:15 PM MST · checked 6:19 PM MST
Open full screen USGS

Regulations, guides and shops for Colorado River

Checked Nov 5, 6:19 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.

Reading the gauges…

Quick picks: our 2,852 waters by state

Each state opens its USGS gauges and our water pages there; a water opens the live cards for its gauges, or the NOAA tides for flats and surf.

Search covers 11,178 USGS stream gauges that reported discharge, gauge height or water temperature in the 183 days before 2026-10-23 (USGS series catalog); readings are fetched live when a gauge is shown.

Where these numbers come from

Discharge, gauge height, water temperature and water quality: U.S. Geological Survey readings (provisional, can be revised), cached for 15 minutes. Where USGS publishes a gauge’s flow only once a day, the latest daily mean is shown with its date.
Normal range: the 25th to 75th percentile of daily mean flow for the same calendar day over the gauge’s record (USGS daily statistics), classed as USGS does (hyswap).
Temperature guidance for trout quotes the gauge’s own state fish and wildlife agency; where we found none, it says so and quotes federal guidance (National Park Service, U.S. Fish and Wildlife Service). Cold-water safety quotes the NWS; dissolved oxygen and pH are read against EPA criteria. Each line names its source.
Flood stage and forecasts: the National Weather Service’s National Water Prediction Service and its Turn Around Don’t Drown guidance. Tides: NOAA Tides & Currents.

General guidance, not a fishing forecast, a safety guarantee or a statement about access. Planning a trip? The trip planner shows these readings on every day you fish a water.

COLORADO RIVER NEAR GRAND CANYON, AZ

USGS 09402500

Limited data: Normal flow for the date: no water temperature here

No water temperature here.

Discharge: 12,500 ft³/s
Gauge height: 16.7 ft

Above normal for Nov 5 Steady · 24 h

Last 7 days

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 5:15 PM MST	12,500	16.7
Nov 5, 4:15 PM MST	12,700	16.8
Nov 5, 3:15 PM MST	12,900	16.9
Nov 5, 2:15 PM MST	12,900	16.9
Nov 5, 1:15 PM MST	12,900	16.9
Nov 5, 12:15 PM MST	12,700	16.8
Nov 5, 11:15 AM MST	12,500	16.8
Nov 5, 10:15 AM MST	12,200	16.7
Nov 5, 9:15 AM MST	11,800	16.6
Nov 5, 8:15 AM MST	11,200	16.4
Nov 5, 7:15 AM MST	10,700	16.2
Nov 5, 6:15 AM MST	10,200	16
Nov 5, 5:15 AM MST	9,880	15.9
Nov 5, 4:15 AM MST	9,780	15.8
Nov 5, 3:15 AM MST	9,780	15.8
Nov 5, 2:15 AM MST	9,880	15.9
Nov 5, 1:15 AM MST	10,000	15.9
Nov 5, 12:15 AM MST	10,200	16
Nov 4, 11:15 PM MST	10,500	16.1
Nov 4, 10:15 PM MST	10,800	16.2
Nov 4, 9:15 PM MST	11,200	16.4
Nov 4, 8:15 PM MST	11,500	16.5
Nov 4, 7:15 PM MST	11,900	16.6
Nov 4, 6:15 PM MST	12,300	16.8
Nov 4, 5:15 PM MST	12,700	16.9
Nov 4, 4:15 PM MST	12,900	17
Nov 4, 3:15 PM MST	13,100	17
Nov 4, 2:15 PM MST	13,100	17.1
Nov 4, 1:15 PM MST	13,000	17.1
Nov 4, 12:15 PM MST	12,800	17
Nov 4, 11:15 AM MST	12,600	16.9
Nov 4, 10:15 AM MST	12,200	16.8
Nov 4, 9:15 AM MST	11,600	16.6
Nov 4, 8:15 AM MST	10,900	16.3
Nov 4, 7:15 AM MST	10,200	16.1
Nov 4, 6:15 AM MST	9,580	15.9
Nov 4, 5:15 AM MST	9,250	15.7
Nov 4, 4:15 AM MST	9,060	15.6
Nov 4, 3:15 AM MST	8,960	15.6
Nov 4, 2:15 AM MST	9,010	15.6
Nov 4, 1:15 AM MST	9,130	15.6
Nov 4, 12:15 AM MST	9,280	15.7
Nov 3, 11:15 PM MST	9,480	15.8
Nov 3, 10:15 PM MST	9,750	15.9
Nov 3, 9:15 PM MST	10,000	16
Nov 3, 8:15 PM MST	10,200	16.1
Nov 3, 7:15 PM MST	10,500	16.1
Nov 3, 6:15 PM MST	10,600	16.2
Nov 3, 5:15 PM MST	10,800	16.3
Nov 3, 4:15 PM MST	10,900	16.3
Nov 3, 3:15 PM MST	11,100	16.4
Nov 3, 2:15 PM MST	11,300	16.4
Nov 3, 1:15 PM MST	11,500	16.5
Nov 3, 12:15 PM MST	11,700	16.5
Nov 3, 11:15 AM MST	11,900	16.6
Nov 3, 10:15 AM MST	12,000	16.6
Nov 3, 9:15 AM MST	12,200	16.7
Nov 3, 8:15 AM MST	12,400	16.7
Nov 3, 7:15 AM MST	12,500	16.8
Nov 3, 6:15 AM MST	12,500	16.8
Nov 3, 5:15 AM MST	12,100	16.6
Nov 3, 4:15 AM MST	11,700	16.5
Nov 3, 3:15 AM MST	11,200	16.3
Nov 3, 2:15 AM MST	10,800	16.2
Nov 3, 1:15 AM MST	10,100	15.9
Nov 3, 12:15 AM MST	9,880	15.8
Nov 2, 11:15 PM MST	10,200	15.9
Nov 2, 10:15 PM MST	10,600	16.1
Nov 2, 9:15 PM MST	11,100	16.2
Nov 2, 8:15 PM MST	11,600	16.4
Nov 2, 7:15 PM MST	12,400	16.7
Nov 2, 6:15 PM MST	13,000	16.9
Nov 2, 5:15 PM MST	13,700	17.1
Nov 2, 4:15 PM MST	14,400	17.3
Nov 2, 3:15 PM MST	15,100	17.5
Nov 2, 2:15 PM MST	15,600	17.7
Nov 2, 1:15 PM MST	16,000	17.8
Nov 2, 12:15 PM MST	15,800	17.8
Nov 2, 11:15 AM MST	14,100	17.3
Nov 2, 10:15 AM MST	11,300	16.3
Nov 2, 9:15 AM MST	9,700	15.7
Nov 2, 8:15 AM MST	8,880	15.4
Nov 2, 7:15 AM MST	8,290	15.2
Nov 2, 6:15 AM MST	7,950	15.1
Nov 2, 5:15 AM MST	7,820	15
Nov 2, 4:15 AM MST	7,840	15
Nov 2, 3:15 AM MST	8,100	15.1
Nov 2, 2:15 AM MST	8,310	15.2
Nov 2, 1:15 AM MST	8,580	15.3
Nov 2, 12:15 AM MST	9,160	15.5
Nov 1, 11:15 PM MST	9,110	15.5
Nov 1, 10:15 PM MST	8,860	15.4
Nov 1, 9:15 PM MST	8,940	15.4
Nov 1, 8:15 PM MST	9,110	15.5
Nov 1, 7:15 PM MST	9,250	15.6
Nov 1, 6:15 PM MST	9,580	15.7
Nov 1, 5:15 PM MST	9,600	15.7
Nov 1, 4:15 PM MST	9,700	15.7
Nov 1, 3:15 PM MST	9,800	15.8
Nov 1, 2:15 PM MST	9,750	15.7
Nov 1, 1:15 PM MST	9,580	15.7
Nov 1, 12:15 PM MST	9,250	15.6
Nov 1, 11:15 AM MST	8,770	15.4
Nov 1, 10:15 AM MST	8,290	15.2
Nov 1, 9:15 AM MST	7,570	14.9
Nov 1, 8:15 AM MST	6,990	14.7
Nov 1, 7:15 AM MST	6,500	14.4
Nov 1, 6:15 AM MST	6,170	14.3
Nov 1, 5:15 AM MST	6,020	14.2
Nov 1, 4:15 AM MST	5,950	14.1
Nov 1, 3:15 AM MST	6,010	14.2
Nov 1, 2:15 AM MST	6,070	14.2
Nov 1, 1:15 AM MST	6,240	14.3
Nov 1, 12:15 AM MST	6,500	14.4
Oct 31, 11:15 PM MST	6,740	14.5
Oct 31, 10:15 PM MST	7,040	14.7
Oct 31, 9:15 PM MST	7,370	14.8
Oct 31, 8:15 PM MST	7,740	14.9
Oct 31, 7:15 PM MST	8,150	15.1
Oct 31, 6:15 PM MST	8,530	15.3
Oct 31, 5:15 PM MST	8,800	15.4
Oct 31, 4:15 PM MST	9,040	15.5
Oct 31, 3:15 PM MST	9,230	15.5
Oct 31, 2:15 PM MST	9,230	15.5
Oct 31, 1:15 PM MST	9,250	15.6
Oct 31, 12:15 PM MST	9,160	15.5
Oct 31, 11:15 AM MST	8,960	15.4
Oct 31, 10:15 AM MST	8,690	15.3
Oct 31, 9:15 AM MST	8,260	15.2
Oct 31, 8:15 AM MST	7,840	15
Oct 31, 7:15 AM MST	7,470	14.9
Oct 31, 6:15 AM MST	7,280	14.8
Oct 31, 5:15 AM MST	7,250	14.8
Oct 31, 4:15 AM MST	7,350	14.8
Oct 31, 3:15 AM MST	7,620	14.9
Oct 31, 2:15 AM MST	7,900	15
Oct 31, 1:15 AM MST	8,210	15.2
Oct 31, 12:15 AM MST	8,530	15.3
Oct 30, 11:15 PM MST	8,800	15.4
Oct 30, 10:15 PM MST	9,110	15.5
Oct 30, 9:15 PM MST	9,450	15.6
Oct 30, 8:15 PM MST	9,750	15.8
Oct 30, 7:15 PM MST	10,100	15.9
Oct 30, 6:15 PM MST	10,400	16
Oct 30, 5:15 PM MST	10,700	16.1
Oct 30, 4:15 PM MST	10,900	16.2
Oct 30, 3:15 PM MST	11,000	16.3
Oct 30, 2:15 PM MST	11,100	16.3
Oct 30, 1:15 PM MST	11,100	16.3
Oct 30, 12:15 PM MST	10,900	16.2
Oct 30, 11:15 AM MST	10,600	16.1
Oct 30, 10:15 AM MST	10,300	16
Oct 30, 9:15 AM MST	9,880	15.8
Oct 30, 8:15 AM MST	9,350	15.6
Oct 30, 7:15 AM MST	8,830	15.4
Oct 30, 6:15 AM MST	8,390	15.2
Oct 30, 5:15 AM MST	8,100	15.1
Oct 30, 4:15 AM MST	8,000	15.1
Oct 30, 3:15 AM MST	8,020	15.1
Oct 30, 2:15 AM MST	8,130	15.1
Oct 30, 1:15 AM MST	8,290	15.2
Oct 30, 12:15 AM MST	8,450	15.3
Oct 29, 11:15 PM MST	8,720	15.4
Oct 29, 10:15 PM MST	9,010	15.5
Oct 29, 9:15 PM MST	9,300	15.6
Oct 29, 8:15 PM MST	9,630	15.7
Oct 29, 7:15 PM MST	9,930	15.8
Oct 29, 6:30 PM MST	10,200	15.9

Reading Nov 5, 5:15 PM MST · checked 6:19 PM MST

Open full screen USGS NWS

Check a river’s flow.

Colorado River, Arizona

COLORADO RIVER NEAR GRAND CANYON, AZ

COLORADO RIVER NEAR RIVER MILE 30

COLORADO R ABV LITTLE COLORADO R NR DESERT VIEW

Quick picks: our 2,852 waters by state

Where these numbers come from

Colorado River, Arizona

COLORADO RIVER NEAR GRAND CANYON, AZ

COLORADO RIVER NEAR RIVER MILE 30

COLORADO R ABV LITTLE COLORADO R NR DESERT VIEW