Rivermatics

3 USGS Streamgages · Colorado River system

Lake Fork River flows and levels

Lake Fork River is gauged at 3 USGS streamgages in Utah, each tracked by Rivermatics. The mainstem runs about 59 miles (95 km) from headwaters to outlet. It drains into the Colorado River system. Drainage area at the gauges ranges from 78 square miles at Lake Fork River Ab Moon Lake, near Mountain Home, UT up to 484 at Lake Fork River near Myton, UT. The gauged reach falls about 3,004 feet, from 8,127 feet down to 5,123. 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
Lake Fork River Ab Moon Lake, near Mountain Home, UT UT 78 8,127 39.1 131.3 14-day
Lake Fork River below Moon Lake near Mountain Home, UT UT 112 7,928 27.6 327 14-day
Lake Fork River near Myton, UT UT 484 5,123 47 27.6 14-day

Typical flow by month at Lake Fork River near Myton, 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 117 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 27 68.4 112.8
February 17.6 74 126.9
March 7 80.9 166.3
April 4.8 47 169.9
May 11.6 87.5 631.2
June 16.5 223.7 1,731.7
July 5.1 27.6 287.3
August 3.6 19.8 61.6
September 3.6 21.4 130.5
October 6.8 31.7 179.5
November 6.8 57.9 130.1
December 10.4 70.5 124.5

All values in cubic feet per second (cfs).

Common questions

When does the Lake Fork River run highest?
June, on the long-term record at Lake Fork River near Myton, UT — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 223.7 cfs that month, against 19.8 cfs in August, 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 Lake Fork River?
Rivermatics tracks 3 USGS streamgages on the Lake Fork River, 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 Lake Fork River?
Yes, at 3 of the 3 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 Lake Fork River part of?
The Lake Fork 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 Lake Fork 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

Browse nearby gauges by state