Explore Lassen Volcanic National Park

Sights to See at Lassen

Sulphur Work

On Highway 89, about one mile +(1.6 km) north of the Southwest Entrance. A small geothermal area with mudpots, fumaroles and hot water flow. Its small parking lot is located right on the highway. A boardwalk allows for closer viewing of the features.

Devastated Area

Located in the north section of the park on Highway 89. This area was located in the path of the pyroclastic flow from Lassen's eruption. All of the vegetation in the area was destroyed by hurricane force winds and burning hot gasses and mud. Since the eruption, the area is regrowing but there is still ample evidence of the destruction. A short, fairly level interpretive trail points out the results of the devestation and the subsequent natural recovery process.