Hike Coalpit to North and South Thunder/Lake Hardy



12.9 miles

Elevation Gain

6026 ft

Route Type


Added by Clark Ragsdale

If you want a difficult hike/scramble with solitude and incredible views, this route through the Lone Peak Wilderness area is exactly what you're looking for. 

Coalpit Gulch is often skied in the winter, but rarely hiked otherwise. I recommend wearing long pants, as the thorn bushes will tear your legs apart. Find the entrance to Coalpit and hike to the very top, don't fall off a waterfall. This is wild terrain. Hike up the steep slope to the saddle on your left and climb through the granite boulders to the SW and summit North Thunder Mountain. This is an accomplishment. Head down the south side of North Thunder and walk along the ridge above the Thunder Bowl as long as you can, at which point you can drop into the Thunder Bowl and take the curve around it to ascend the ridge that leads to South Thunder Mountain. Once there, carefully navigate your way to the summit of South Thunder and take the SW route down to Lake Hardy. There are quite a few options here. Descend out of the canyon and stick to the right to catch the trail west to Jacob's Ladder, take Jacob's Ladder down to Corner Canyon, or go to the Second Hamongog and then the First down to Alpine, or head South and out Dry Creek. 

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We want to acknowledge and thank the past, present, and future generations of all Native Nations and Indigenous Peoples whose ancestral lands we travel, explore, and play on.

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