Twin Lakes are probably the most popular hiking destination in Montana’s Crazy Mountains. The Crazy Mountains are an island mountain range north of Interstate 90 in the Livingston/Big Timber area. The trailhead for hiking to Twin Lakes is located in Big Timber Canyon near the Halfmoon Campground. This popular access is the beginning point for the Big Timber Creek Falls, the Crazy Mountain Crossing backpacking trail, the trail to Blue Lake, and the trail to Twin Lakes. If you visit, expect to find other hikers and campers enjoying this spectacular area.