1921 Map of Gilroy Hot Springs

About this map

Gilroy Hot Springs serves as a notable landmark in the deep canyons of the Diablo Range, situated where Coyote Creek and Willow Creek converge. This 1918 survey, published just after the First World War, captures a remote landscape defined by Spanish land grants including San Luis Gonzaga, San Ysidro or Ortega, and Llano del Tequisquita. These traditional boundary lines overlay a terrain of steep peaks such as Mustang Peak and Burra Burra Peak, reflecting the transition from Mexican era rancho holdings to early 20th-century American ranching. Isolated outposts like Robeson Ranch and O'Connor Ranch are reachable only by rugged trails and early roads, while Bells Station marks a key stopping point along the Pacheco Creek corridor. The map preserves the names of distinct geological features like Lovers Leap and Elephant Head, which served as vital navigation points for travelers moving through the passes toward the Central Valley.