Thunder Mountain

Total Miles
9.9

Technical Rating

1

Best Time

Spring, Summer, Fall

Trail Type

Full-Width Road

Accessible By

Trail Overview

The Thunder Mountain Trail is actually a quiet forest road in the southern reaches of the Mount Hood National Forest, just north of Bagby Hot Springs. Much of the surrounding area still shows heavy damage from the 2020 Riverside Fire, and some connecting roads farther north remain closed. Begin on NF-6322 and follow it north, then west, until it joins NF-4620 (also called Sandstone Road). Turn west onto NF-4620 and enjoy increasingly open views of the Cascade peaks as you climb. About 8.8 miles from that junction, you'll reach the small Thunder Mountain Trailhead pullout on your left. Continue driving the same road (still NF-4620) as it gradually ascends to a broad, man-made plateau at the end. From there, expansive vistas open up across the burned and recovering forest, with Mount Jefferson rising prominently in the distance on clear days.

Photos of Thunder Mountain

Thunder Mountain
Thunder Mountain

Difficulty

A relatively smooth forest road with minimal potholes.

Technical Rating

1

Status Reports

There are no status reports yet for this trail.

Thunder Mountain can be accessed by the following ride types:

  • High-Clearance 4x4
  • SUV

Access Description

From Estacada, head southeast on Highway 224. Stay on 224 past the town of Ripplebrook (and the old guard station) until the pavement ends at Ripplebrook Campground, where the highway becomes NF-46. Continue south on NF-46 (now gravel) along the upper Clackamas River. Pass the Caby and Pegleg Campgrounds, then reach Riverford Campground on your right. Just after Riverford Campground, turn right onto NF-63 (Collawash River Road). Follow NF-63 along the Collawash River for several miles until you reach the junction with NF-6320. Turn right onto NF-6320; this is the road that leads directly to the Thunder Mountain area and the start of the route described earlier.

Thunder Mountain Map

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