Thunder Mountain Trail #543


This is a scenic day hike to the summit of Thunder Mountain. There are great views of the surrounding mountains from the summit.

The trail begins at Sandstone Road (Forest Road 4620) (4,240’) and ends at Thunder Mountain (5,040’). From Sandstone Road the trail heads south briefly, then turns northwest and travels 0.6 mile to the first switchback. The trail gets slightly steeper and continues 0.6 mile up three more switchbacks to the end of this trail and the beginning of Skookum Lake Trail #542. Visitors can take the 150’ spur trail to the summit of Thunder Mountain. Visitors can also choose to follow Skookum Lake Trail #542 1.2 miles down to Skookum Lake. There are several campsites at Skookum Lake.

Trail Description and Map (PDF File)

At a Glance

Closest Towns: Estacada, OR
Operated By: Forest Service
Information Center: Clackamas River Ranger District (971) 333.4100

General Information


From Portland, OR - travel east on US Hwy 26 to Sandy. Turn right (southwest) on OR Hwy 211 and travel 6.1 miles to OR Hwy 224. Turn left (southeast) on OR Hwy 224 and travel 30.6 miles to Forest Road 46. Take the right fork onto Forest Road 46 and travel 3.7 miles to Collowash Road (Forest Road 63). Turn right onto Collowash Road and travel 3.3 miles to Forest Road 6320. Follow Forest Road 6320 1.3 miles to Forest Road 6322. Turn right onto Forest Road 6322 and travel 5.9 miles to Forest Road 4620. Take the left fork onto Forest Road 4620 and travel 3 miles to the trailhead on the right (west) side of the road.



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  Area/Length : 
1.3 miles

  Elevation : 
4240' - 5040'


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