Obsidian Dome to Grant Lake

Total Miles


2682.51 ft


5 Hours

Technical Rating



Best Time

Spring, Summer, Fall

Trail Overview

The trail is a good day ride with great views and nice lookout points overlooking June Lake and Grant Lake. Most of the trail up to the Junction is trails through pine forest, 2nd half of the trail is mostly low shrubs. June Lake Junction store is about the halfway point with homemade milkshakes, snacks, and drinks. They also have a gas station if you're low on fuel.


Trail is nice and wide but not to sure if a 2 wheel drive will make the trip but any stock 4x4 should not have a problem.

Technical Rating


Access Description

Head North on the I-395 leaving Mammoth when you get to the upper Obsidian Dome Road turn left take the dirt road in about 1 mile till you come to the T in the road and go left to Obsidian Dome Loop Trail (2S79) go about 1000 yards to Hartley Springs Trail (2S78). This will put you at the beginning of the trail.