Rivermatics

2 USGS Streamgages · Colorado River system

Ashley Creek flows and levels

Ashley Creek is gauged at 2 USGS streamgages in Utah, each tracked by Rivermatics. The mainstem runs about 52 miles (83 km) from headwaters to outlet. It drains into the Colorado River system. Drainage area at the gauges ranges from 101 square miles at Ashley Creek near Vernal, UT up to 241 at Ashley Creek near Remember the Maine Park near Vernal, UT. The gauged reach falls about 489 feet, from 6,234 feet down to 5,745. Rivermatics issues a daily machine-learned 14-day flow outlook for every one 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.

USGS streamgages on this river, ordered upstream to downstream
Gauge State Drainage sq mi Elevation ft April p50 cfs July p50 cfs Forecast
Ashley Creek near Vernal, UT UT 101 6,234 32 112.2 14-day
Ashley Creek near Remember the Maine Park near Vernal, UT UT 241 5,745 34.2 130.5 14-day

Typical flow by month at Ashley Creek near Remember the Maine Park near Vernal, UT

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 87 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 17.5 27.5 36.2
February 16 24.2 31.9
March 16.4 23.2 33.4
April 16.4 34.2 136.3
May 98 331.6 934.8
June 117.4 334.7 963.1
July 59.4 130.5 257.8
August 31.6 87.4 141.6
September 25.7 60.1 112.9
October 24.3 47.7 88
November 24.5 35.6 60.6
December 20.1 30.4 44.5

All values in cubic feet per second (cfs).

Common questions

When does the Ashley Creek run highest?
June, on the long-term record at Ashley Creek near Remember the Maine Park near Vernal, UT — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 334.7 cfs that month, against 23.2 cfs in March, 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 Ashley Creek?
Rivermatics tracks 2 USGS streamgages on the Ashley Creek, across Utah. 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 Ashley Creek?
Yes, at 2 of the 2 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 Ashley Creek part of?
The Ashley Creek 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 Ashley Creek 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

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