Facility · Idaho ·
Managed by the USDA Forest Service
Hells Canyon National Recreation Area (National Recreation Area) · Open Access
The Cow Creek Trailhead is a small rustic trailhead along the Imnaha River. The site is primarily used in the spring for hikers, anglers and dual sport motorcycle riders going down to the Snake River, and summer and fall hunters. The road accessing this trailhead is rugged and not suitable for low clearance vehicles. 4-wheel drive recommended.
45.76370, -116.74833 · 45°45'49.3"N 116°44'54.0"W
Typically 89°F in Aug, down to 36°F in Dec.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 38 | 45 | 51 | 59 | 69 | 77 | 88 | 89 | 80 | 63 | 46 | 36 |
| Low °F | 18 | 20 | 26 | 30 | 36 | 41 | 45 | 44 | 36 | 30 | 24 | 18 |
| Precip in | 1.6 | 1.5 | 1.5 | 1.9 | 2.1 | 1.9 | 0.8 | 0.7 | 0.9 | 1.3 | 2.3 | 2.3 |
1991–2020 averages from the nearest NOAA station, 19.9 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.
Recreation.gov last updated this record on 2026-02-25.
Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.
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