Summer and autumn visitors can hike the Bumpass Hell Trail, where you can see hydrothermal features, including steaming fumaroles and bubbling mud pots.
While Emerald Lake and Lake Helen are two alpine lakes with crystal-clear water, bubbling mud pots frame Boiling Springs Lake’s sea-green 125-degree waters.
Lassen Volcanic National Park houses unique wildlife, including mountain lions, red foxes, black bears, snowshoe hares, pikas, badgers, and river otters.