Also known as Lassen Volcanic National Park, this reserve is located in the northeastern section of California and is considered to be the southernmost beginning of the Cascades Range. Until Mt. St. Helens blew its top in May 1980, this mountain was considered the most recent of volcanic activities in the United States because of its culminating eruptions in 1915...cinder cones and massive hills of evidence from the explosions are seen throughout the Park...summer travel through the Park takes the visitor to 8900 feet(roads) whereas hiking trails ascend higher altitudes. This magnificent park continues to be a scientific classroom with bubbling and boiling locations.