While California’s other parks soak up most of the glory, Lassen Volcanic National Park quietly offers world-class backcountry with none of the crowds or permit competition. We’ve covered Lassen a few times, but only for dayhikes and its section of the Pacfic Crest Trail. Shameful. This overnight is so spectacular, you might even feel the earth move: The 10,457-foot volcano hasn’t spewed since 1921, but it occasionally rumbles.
This 17.7-mile lollipop route starts on the Summit Lake Trail, heading 7.3 miles to a spur leading to a campsite on Horseshoe Lake (free permit required). Then, continue counterclockwise to Snag, Rainbow, and Upper and Lower Twin Lakes.
Maps USGS quads West Prospect Peak, Reading Peak, Mount Harkness, and Prospect Peak