
Lassen Volcanic National Park
Overview Lassen Volcanic National Park was established in 1916 and features a number of volcanic elements, including hydrothermal vents, lava flows, etc. We’ve been to Lassen several times! Both Mark and Tiffany went as kids. Tiffany as a young adult, and all of us in 2025. We’re looking forward to returning 2026. Maps Caltopo Map National Park Map. Recommend changing from Standard to Brochure for the best view of park details. Many notices will be at the top during off season due to closures. Camping Overview of locations ...