About this river
Mammoth Canal is a 2.6 mile canal near Always Rafting & Kayaking in Utah. Streamflow is measured at the USGS gauge Beaver River near Beaver, UT (site 10234500). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1915 to 2026
Mammoth Canal typically runs highest in May, at a median 137 cfs, and lowest in January, at 18 cfs. The highest flow on record for any single day is 884 cfs, in 1984.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 18 | 15 to 20 | |
| February | 18 | 16 to 21 | |
| March | 21 | 18 to 25 | |
| April | 43 | 32 to 61 | |
| May | 137 | 89 to 225 | |
| June | 108 | 69 to 191 | |
| July | 57 | 28 to 80 | |
| August | 31 | 22 to 44 | |
| September | 24 | 18 to 30 | |
| October | 22 | 18 to 27 | |
| November | 20 | 17 to 24 | |
| December | 19 | 16 to 22 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 111 years of record. Statistics published by the US Geological Survey for Beaver River near Beaver, UT (site 10234500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Mammoth Canal's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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