About this river
Mountain Fork is a 26.6 mile river near PaddleSUP in Oklahoma. Streamflow is measured at the USGS gauge Mountain Fork at Smithville, OK (site 07338750). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1992 to 2026
Mountain Fork typically runs highest in March, at a median 480 cfs, and lowest in August, at 13 cfs. The highest flow on record for any single day is 35,700 cfs, in 2016.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 350 | 165 to 689 | |
| February | 428 | 213 to 803 | |
| March | 480 | 262 to 1,050 | |
| April | 408 | 225 to 829 | |
| May | 253 | 130 to 681 | |
| June | 114 | 51 to 318 | |
| July | 33 | 9.1 to 126 | |
| August | 13 | 5.5 to 54 | |
| September | 15 | 4.4 to 72 | |
| October | 30 | 5.8 to 177 | |
| November | 164 | 35 to 493 | |
| December | 338 | 124 to 793 |
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 34 years of record. Statistics published by the US Geological Survey for Mountain Fork at Smithville, OK (site 07338750). 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 Mountain Fork'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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