Compiled at the District Office, San Francisco from U.S.G.S.,G.L.O., Forest Service, this topographic map of the Sequoia National Forests Mount Diablo Meridian had been mounted on linen for ease of use while on the trail. Illustrated are the topographical features such as, lakes, rivers, townships, roads and mountains. Hand drawn is the John Muir Trail (from Panther Peak to Mt Fiske).