When California was under Mexican rule, land grants were made to the early settlers in the state, who were known as Californios. Some of these Californios discovered today’s Marin County, just across the bay from San Francisco, and petitioned the Mexican government for land grants in the area, attracted by the abundant natural resources.
To explore this early chapter of our County’s history, visit the interactive
Marin County Rancho map on the California Room Digital Archive. Just click on each rancho to display the original rancho name, the owner, and the number of acres it comprised. A new feature links you to brief biographies of the original grantees and background information on the ranchos.
Our new biographies were written by intern, Eric Ward, and have been edited by the California Room staff. The map was graciously created for us by local artist, Leila Joslyn.