Devastated Area

Devastated Area is a roadside stop along the park highway, with a 0.2-mile accessible interpretive loop among volcanic boulders and recovering forest. It’s an easy way to get the outline of Lassen Peak’s 1915 eruption without taking on a longer hike. The forest has grown back across much of the area, so come for the rocks and story more than a huge bare scar.

On May 19, homesteader Elmer Sorahan saw a wall of water and logs rush down Hat Creek and warned neighbors downstream. The Hall family escaped before the flow swept their home from its foundation. Three days later, Lassen Peak’s strongest explosion sent hot ash and gas down the slope and triggered more mudflows as snow mixed in. The strongest eruptions devastated about three square miles; ash reached at least 200 miles east.

Large volcanic boulders and wayside panels follow the loop. Read the historic photos and accounts alongside the rocks: much of this once-bare landscape is now forested again. From several points you can see Lassen Peak and the upper Devastated Area on its southeast slope. It’s a good quick eruption primer for families and curious visitors; if you’re looking for a dramatic crater hike, this short loop isn’t that.

The loop is 0.2 mile on hardpacked decomposed granite, 6 feet wide, and passable by wheelchair; NPS lists a maximum 5% grade and 2% cross-slope. Push buttons at the waysides play audio descriptions. Parking, picnic tables, and vault or composting toilets are available, with the tables and toilets a short walk from the parking area. The site is 10 miles from the Northwest Entrance. The park highway usually closes to through traffic from about December through May, and snow can linger on the trail into June, so check road conditions when planning a late-spring visit. Park entry requires an entrance fee or pass; there’s no separate trail fee or reservation. Pets aren’t allowed on park trails, but service animals are.