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2012 Map of San Quentin

Name: 2012 Topographic Map of San Quentin
Creator: U.S. Geological Survey
Published: 2012
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2012

About this map

The Richmond - San Rafael Bridge spans the narrowest point of the North Bay, anchoring a maritime and industrial landscape that connects Marin and Contra Costa counties. This survey documents the complex interface of deep-water shipping channels and residential peninsulas, where the Southampton Shoal Channel guides vessels past the historic East Brother Lighthouse. The map details the transition from the industrial waterfronts of Point Richmond, featuring the Long Wharf and Brickyard Cove Marina, to the suburban enclaves of the Tiburon Peninsula and Bel Aire.

Grounded in early 21st-century development, the map reveals the varied character of the shoreline, from the recreational McNears Beach and Blackies Pasture to the institutional prominence of San Quentin. Natural features like Ring Mountain and the rocky outcrops of The Sisters stand alongside modern infrastructure like the Richmond Harbor Entrance Channel, illustrating the region's dual role as a major Pacific maritime hub and a residential landscape.