Relief shown by hachures and spot heights.; "Reconnaissance maps, Department of California."; "Officially compiled and published at the Engineer Office, headquarters Department of California in 1869 and 70."; At head of map: Reconnaissance maps. Department of California. Military map, no. 1. 73 x 52 centimeters Scale 1:80,000 Longitudinal; 1:20,000, traversal y de detalles. General Map Collection