//
On Highway 89, near Lassen Peak. This is the largest geothermal area in the park and features boiling pools, mudpots and roaring fumaroles seen from a wooden boardwalk. A large parking lot is found at the trailhead to Bumpass Hell. The geothermal area can be reached via a 3-mile (4.8 km) hiking trail. The trail has a 300 foot (91 m) elevation gain/loss. The elevation of the trail is around 8,000 feet (2,430 m) so care should be taken if you are not used to high altitudes. The trail is buried under snow until late spring, sometimes till mid-summer, depending on the previous winter's snowfall.
The historic museum is located one mile from the northwest entrance of the park near Manzanita Lake. The museum is only open during the summer months. Visit for information, to view exhibits and the park film, shop at the educational bookstore, or participate in a ranger-led program.
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 right on the highway. A boardwalk allows for closer viewing of the features.