peak (14,162 feet 【4,317 metres】) of the Cascade Range in the Shasta-Trinity National Forest, northern California, U.S. The peak lies 77 miles (124 km) north of the city of Redding. An impressive double-peaked dormant volcano, it dominates the landscape (a vast panorama of tumbled mountains and valleys) for a hundred miles and is a main feature of Whiskeytown-Shasta-Trinity National Recreation Area. Its last recorded eruption occurred in 1786; the area remains tectonically active, and earthquakes are relatively common. Mount Shasta has steam vents and several glaciers that feed the McCloud, Sacramento (Sacramento River), and Shasta rivers, and its slopes are popular with skiers and climbers. The area was explored by Peter Skene Ogden (Ogden, Peter Skene), who named the mountain in 1827 for the local Shastan Indians. E.D. Pearce made the first ascent in 1854. A highway has been built up the slopes to 8,000 feet (2,400 metres). The communities of Weed, McCloud, and Mount Shasta lie on a broad alluvial fan at the southwestern base.