Around here
Around East Fork North Fork Trinity River
Data Source: Recreation.gov · Source: USDA Forest Service · Source: USGS GNIS · Public land: USGS PAD-US · Forest roads: USDA Forest Service MVUM · BLM routes and areas: Bureau of Land Management (simplified for web display)
About this river
East Fork North Fork Trinity River is a 10.3 mile river. Streamflow is measured at the USGS gauge Trinity R above NF Trinity R near Helena CA (site 11526400). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
2005 to 2026
East Fork North Fork Trinity River typically runs highest in May, at a median 3,230 cfs, and lowest in November, at 427 cfs. The highest flow on record for any single day is 19,700 cfs, in 2006.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 846 | 576 to 1,850 |
| February | 953 | 654 to 1,630 |
| March | 1,130 | 663 to 2,110 |
| April | 1,295 | 742 to 2,415 |
| May | 3,230 | 1,900 to 5,140 |
| June | 1,375 | 866 to 2,630 |
| July | 740 | 474 to 1,180 |
| August | 515 | 461 to 594 |
| September | 531 | 495 to 892 |
| October | 458 | 426 to 517 |
| November | 427 | 380 to 550 |
| December | 507 | 420 to 953 |
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 21 years of record. Statistics published by the US Geological Survey for Trinity R above NF Trinity R near Helena CA (site 11526400). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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