9 USGS Streamgages · Colorado River system
Little Colorado River flows and levels
Little Colorado River is gauged at 9 USGS streamgages in Arizona, each tracked by Rivermatics. The mainstem runs about 370 miles (596 km) from headwaters to outlet. It drains into the Colorado River system. Drainage area at the gauges ranges from 29 square miles at Little Colorado River at Greer, AZ up to 26,972 at Little Colorado River above Mouth near Desert View, AZ. The gauged reach falls about 5,534 feet, from 8,294 feet down to 2,760. Rivermatics issues a daily machine-learned 14-day flow outlook at 7 of them.
Gauges on this river, upstream to downstream
Ordered by drainage area, which is how far down the river each gauge sits. April and July figures are long-term median daily flows for that month from the USGS record — historical normals, not a forecast and not today's reading.
| Gauge | State | Drainage sq mi | Elevation ft | April p50 cfs | July p50 cfs | Forecast |
|---|---|---|---|---|---|---|
| Little Colorado River at Greer, AZ | AZ | 29 | 8,294 | 21.7 | 8.8 | 14-day |
| Little Colorado River above Lyman Lake near St. Johns, AZ | AZ | 706 | 6,005 | 26.7 | 3.2 | 14-day |
| Little Colorado River below Salado Springs, AZ | AZ | 845 | 5,785 | 1.8 | 6.8 | 14-day |
| Little Colorado River at Woodruff, AZ | AZ | 8,072 | 5,132 | 3.9 | 7.3 | 14-day |
| Little Colorado River at Holbrook, AZ | AZ | 11,462 | 5,063 | 3.8 | 22.1 | — |
| Little Colorado River near Joseph City, AZ | AZ | 12,384 | 5,031 | 3.7 | 255.1 | — |
| Little Colorado River near Winslow, AZ | AZ | 16,192 | 4,836 | 52 | 21.2 | 14-day |
| Little Colorado River near Cameron, AZ | AZ | 26,459 | 3,979 | 86.7 | 6.4 | 14-day |
| Little Colorado River above Mouth near Desert View, AZ | AZ | 26,972 | 2,760 | 283.7 | 228.5 | 14-day |
Typical flow by month at Little Colorado River above Mouth near Desert View, AZ
The furthest-downstream gauge on this river, so the fullest flow it carries here. Long-term daily discharge percentiles from the USGS record (up to 36 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 212.5 | 225.2 | 863.4 | |
| February | 214.9 | 238.6 | 1,206.1 | |
| March | 217.6 | 410.9 | 1,543.5 | |
| April | 214.3 | 283.7 | 1,397.3 | |
| May | 207.2 | 219.2 | 330.6 | |
| June | 207.9 | 218.2 | 232.7 | |
| July | 213.4 | 228.5 | 782.5 | |
| August | 216.6 | 306.8 | 1,551.8 | |
| September | 215.6 | 242.7 | 876.2 | |
| October | 210.3 | 230.1 | 891.9 | |
| November | 212 | 222.4 | 329.3 | |
| December | 213 | 223.6 | 467.4 |
All values in cubic feet per second (cfs).
Common questions
- When does the Little Colorado River run highest?
- March, on the long-term record at Little Colorado River above Mouth near Desert View, AZ — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 410.9 cfs that month, against 218.2 cfs in June, the lowest. Upstream gauges peak on their own schedule; the table on this page gives April and July for each.
- How many gauges are on the Little Colorado River?
- Rivermatics tracks 9 USGS streamgages on the Little Colorado River, across Arizona. Each has its own page with the site's full flow record and monthly normals. The river may carry other gauges that publish neither daily values nor discharge statistics; those are not tracked here.
- Is there a flow forecast for the Little Colorado River?
- Yes, at 7 of the 9 gauges. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on each basin's observed flows, weather and snowpack, and issues a daily outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on each gauge's live screen.
- What river system is the Little Colorado River part of?
- The Little Colorado River drains into the Colorado River system — it is a tributary somewhere in that chain, following the flowpath down to its terminal river. Rivermatics builds this from the USGS/geoconnex reference-mainstem network rather than from names.
- Can I use Little Colorado River data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.
Other rivers in the Colorado River system
- Gila River 17 gauges
- San Juan River 10 gauges
- Animas River 9 gauges
- Gore Creek 9 gauges
- Green River 9 gauges
- Virgin River 8 gauges
- Yampa River 8 gauges
- Dolores River 7 gauges