About this river
Brimstone Creek is a 7.8 mile river near Mountain Lake Marina & Campground in Tennessee. Streamflow is measured at the USGS gauge New River at New River, TN (site 03408500). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1934 to 2026
Brimstone Creek typically runs highest in March, at a median 885 cfs, and lowest in September, at 32 cfs. The highest flow on record for any single day is 39,100 cfs, in 2020.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 686 | 375 to 1,360 | |
| February | 816 | 483 to 1,470 | |
| March | 885 | 545 to 1,500 | |
| April | 672 | 409 to 1,215 | |
| May | 289 | 160 to 575 | |
| June | 123 | 65 to 318 | |
| July | 99 | 44 to 264 | |
| August | 68 | 30 to 143 | |
| September | 32 | 9.9 to 98 | |
| October | 40 | 11 to 116 | |
| November | 137 | 51 to 404 | |
| December | 513 | 212 to 1,080 |
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 87 years of record. Statistics published by the US Geological Survey for New River at New River, TN (site 03408500). 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 Brimstone Creek'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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