Rivermatics

2 USGS Streamgages · Colorado River system

Anthracite Creek flows and levels

Anthracite Creek is gauged at 2 USGS streamgages in Colorado, each tracked by Rivermatics. The mainstem runs about 18 miles (28 km) from headwaters to outlet. It drains into the Colorado River system. Drainage area at the gauges ranges from 95 square miles at Anthracite Creek near Somerset, CO up to 233 at Anthracite Creek above Mouth near Somerset. The gauged reach falls about 474 feet, from 6,761 feet down to 6,287. Rivermatics issues a daily machine-learned 14-day flow outlook at 1 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
Anthracite Creek near Somerset, CO CO 95 6,761 204.6 247.3 —
Anthracite Creek above Mouth near Somerset CO 233 6,287 327.6 188.5 14-day + temp

Typical flow by month at Anthracite Creek above Mouth near Somerset

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

Only 9 of 12 months have enough record to summarize; the rest are omitted.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
March 40.3 73.2 246.1
April 153.3 327.6 746.4
May 460.1 817.5 1,792.9
June 263.5 1,026.9 1,858.7
July 63.2 188.5 768.4
August 33.7 80.6 156.5
September 27.7 53.8 91.1
October 31.9 51.3 76.6
November 32.6 45.1 63.4

All values in cubic feet per second (cfs).

Common questions

When does the Anthracite Creek run highest?
June, on the long-term record at Anthracite Creek above Mouth near Somerset — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 1,026.9 cfs that month, against 45.1 cfs in November, 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 Anthracite Creek?
Rivermatics tracks 2 USGS streamgages on the Anthracite Creek, across Colorado. 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 Anthracite Creek?
Yes, at 1 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 Anthracite Creek part of?
The Anthracite 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 Anthracite 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

Browse nearby gauges by state