1955 Map of Mt. Sizer

About this map

Henry Willard Coe State Park dominates this mid-century topographic record, preserving a landscape of steep ridges and deep canyons before the expansion of nearby Silicon Valley. The map documents an era when the Diablo Range was defined by working cattle operations and remote outposts, including Los Huecos Ranch, Coe Ranch, and Oak Flat Ranch. The complex drainage of Coyote Creek and its many tributaries, such as Middle Fork Coyote Creek and Little Coyote Creek, carves through prominent formations like Bollinger Ridge and Fitzgerald Ridge.