Cannon Ball Mountain
About
Cannon Ball Mountain is a summit of 7,192 feet in the Salmon River Ranger District of the Nez Perce-Clearwater National Forest in Idaho, about 10 miles from the town of Riggins. Summer is the most comfortable time to visit. At the nearby Warren weather station, typical July and August highs average around 79°F with lows in the mid-30s, and the mountain sits higher than that station, so expect slightly cooler temperatures on top. The closest trails are Alder Springs Trail, about 0.8 mile away, and the Cannon Ball Mountain Trail, about 1.7 miles away, with the West Fork Rapid River Trail about 1.6 miles off. Climbers can find Undertow Wall roughly 3.6 miles away.
Summit Facts
Summit elevation
7,192 ft
Elevation from USGS 3D Elevation Program terrain data (about 10 m resolution).
Location
Cannon Ball Mountain
Idaho
Name and location: U.S. Geological Survey, Geographic Names Information System (GNIS). Elevation: USGS 3D Elevation Program. View the GNIS record.
Facts about this place
When to go
Best time to go: Jun–Sep. The mildest months here, with typical highs of 68–79°F and lows of 30–37°F.
Typical monthly averages (not a forecast) from the Warren, ID weather station, 39 mi away. High / low in °F.
- Jan35° high7° low
- Feb41° high7° low
- Mar46° high17° low
- Apr50° high20° low
- May59° high27° low
- Jun68° high34° low
- Jul79° high37° low
- Aug79° high35° low
- Sep69° high30° low
- Oct56° high23° low
- Nov41° high16° low
- Dec34° high9° low
The station sits about 1,300 ft lower than this spot, so expect it to run cooler up here.
Where it is
- Salmon River Ranger District · Ranger district
- Nez Perce-Clearwater National Forest · National forest
- Nearest town
- Riggins, Idaho · 9.6 mi
Conditions
Active alerts for Salmon River Ranger District as of Oct 9, 2026:
Grangeville Salmon Road Closure Extension
caution · posted Aug 24, 2026
Source: USFS forest alerts
Nearby
- Alder Springs TrailHiking0.8 mi
- West Fork Rapid River TrailHiking1.6 mi
- Cannon Ball Mountain TrailHiking1.7 mi
- Undertow WallRock climbing3.6 mi
- Funky Buddha AreaRock climbing3.6 mi
- Rapid RiverCanoeing4.9 mi
- Granite CreekCanoeing8.2 mi
- Shorts BarCamping9.9 mi
Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)
