Thing to Do

Hike Up Inferno Cone

Visitors start a steep climb up a bare cinder slope.
The hike to the top of Inferno Cone is short but extremely steep.

Trail length: 0.4 mi (0.8 km) round-trip
Elevation gain: 164 ft (50 m)

The steep trail to the top of Inferno Cone is challenging, but it rewards hikers with 360-degree views of the Great Rift, the Snake River Plain, and the Pioneer Mountains. On the clearest days you may even see the Teton Range, 100 miles to the east. Caution: This open, exposed trail can be hazardous in high winds.
Details
Entrance fees may apply, see Fees & Passes information.
Accessibility Information
TRAIL LENGTH: 0.4 miles (0.8 km) round-trip
CUMULATIVE ELEVATION CHANGE: gain 164 ft (50 m)  

TYPICAL GRADE: 8.5° (14.9%)
91% of trail is from 4.5° to 15.5° (8% to 28%)
Standard wheelchair ramp is 4.5° (8%)

TYPICAL CROSS SLOPE: 1.8° (3%)
TYPICAL TREAD WIDTH: 60 in (152 cm)
MINIMUM TREAD WIDTH: 60 in (152 cm)

TRAIL SURFACE: cinders
100% of trail is FIRM
OBSTRUCTIONS: ROCKS to 4 inches

WARNING: 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.

Last updated: August 20, 2021