The waters which come together are Big Lake, Tule River, Ja-She Creek, Lava Creek, and Fall River. Together they form one of the largest systems of fresh water springs in the country. The park covers part of the Ahjumawi people's ancestral homeland and remains an integral part of their culture. Features include bedrock mortars, village and ceremonial sites, and prehistoric fish traps still used today. Preserved within the Park are lava flows broken by great faults and deep cracks, lava tubes and craters.
Freshwater spring flowing from the lava are prominent along the shoreline.
Oak, pine, and juniper forests and slopes of rabbit brush and sagebrush are part of the great variety of vegetation in the area. Abundant wildlife populations are evident all seasons. A great variety of birds including, bald eagles, ospreys, and great blue herons nest or travel thorough the park. Herds of mule deer forage though much of the park. Visitors may be inspired by magnificent vistas of Mt. Shasta, Mt. Lassen, and other nearby peaks.