Bumpass Hell is a geothermal area located in Lassen Volcanic National Park in northern California. It features boiling mud pots, fumaroles, and hot springs, showcasing the park's volcanic activity. The area is named after a local pioneer, K. Bumpass, who discovered it in the 19th century. Visitors can explore Bumpass Hell via a well-maintained trail that offers views of its unique geothermal features. The site is an important part of the park's ecosystem, providing insights into volcanic processes and the natural landscape. It is a popular destination for hikers and nature enthusiasts.