Thing to Do

Hike the Tree Molds Trail

dark rock featuring the impression of two fallen tree trunks
Hikers can get up close to the impressions of fallen trees on the Tree Molds Trail.

NPS Photo

Length: 2 mi (3.2 km) round-trip
Elevation gain: 108 ft (33 m)

This trail winds through shrubs and stands of limber pine within the Craters of the Moon Wilderness before reaching the edge of the Blue Dragon Flow. While still molten, this lava flow knocked down and ignited trees. The charred tree trunks left impressions in the lava rock. In other places, the trees remained standing as the lava encased them, leaving vertical molds in the cooling lava.

The tree molds can be seen at the end of the trail, one mile from the trailhead.
Pets Allowed
Entrance fees may apply, see Fees & Passes information.
From the visitor center, follow the Loop Road for about 3.5 miles. Turn right at the Tree Molds sign, and follow the road for another mile to the Tree Molds parking area. This trailhead serves the Tree Molds Trail, Broken Top Loop, and the Wilderness Trail.

RV parking, vault toilets, and a bicycle rack are available.
Spring, Summer, Fall
Accessibility Information
TRAIL LENGTH: 2 mile (3.2 km) round-trip to 1st group of tree molds
CUMULATIVE ELEVATION CHANGE: gain 108 ft (33 m), loss 147 ft (45 m)  

TYPICAL GRADE: 3° (5.1%)
20% of trail is from 4.5° to 14° (8% to 25%)
Standard wheelchair ramp is 4.5° (8%)

36% of trail is from 4.5° to 10° (8% to 18%)

TYPICAL TREAD WIDTH: 44 in (113 cm)
MINIMUM TREAD WIDTH: 17 in (43 cm)

TRAIL SURFACE: asphalt and cinder
10% of trail is PAVED, 90% of trail is cinder

WARNING: Trail measurements end at 1st group of tree molds. After that point, expect rocks, ruts, and steps of varying sizes. Trail conditions may have changed since this trail was assessed. Temporary obstructions may include downed trees and rock fall. Maximum grades and cross slopes may vary by 10% or more.

Craters Of The Moon National Monument & Preserve

Last updated: May 6, 2023