Around here
Around Mashel River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
Mashel River is a 21.6 mile river. Streamflow is measured at the USGS gauge Mashel River near LA Grande, WA (site 12087000). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1941 to 2026
Mashel River typically runs highest in December, at a median 296 cfs, and lowest in August, at 14 cfs. The highest flow on record for any single day is 6,300 cfs, in 2020.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 277 | 160 to 505 |
| February | 235 | 153 to 420 |
| March | 271 | 164 to 409 |
| April | 254 | 179 to 366 |
| May | 167 | 102 to 270 |
| June | 109 | 58 to 192 |
| July | 30 | 20 to 48 |
| August | 14 | 11 to 23 |
| September | 15 | 9.8 to 29 |
| October | 45 | 23 to 106 |
| November | 209 | 104 to 459 |
| December | 296 | 165 to 519 |
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 52 years of record. Statistics published by the US Geological Survey for Mashel River near LA Grande, WA (site 12087000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put Mashel River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Mashel River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
