1954 Map of San Geronimo

About this map

Nicasio and the rural valleys of central Marin County appear here in a mid-century snapshot of ranching and early suburban transition. The landscape is defined by large Mexican-era land grants including Corte Madera De Novato and several Nicasio partitions, which preserved large open tracts long after the initial settlement era. Along the valley floor, the Old Railroad Grade traces the path of former transit through Woodacre and San Geronimo, marking the historical importance of the rail corridor to these canyon communities. In the west, the wooded slopes of Samuel P Taylor State Park dominate the terrain near Jewell, while the Novato Creek Dam signifies the postwar infrastructure development supporting the region's growth. Local educational hubs like the Nicasio School and Lagunitas District School serve as primary landmarks for these dispersed mountain and valley settlements.