2021 Map of Mare Island

About this map

Mare Island stands as a central topographic feature of this coastal survey, situated where the Napa River meets the Carquinez Strait. The map documents the intricate urban grids and industrial waterfronts of Vallejo, Rodeo, and Hercules, alongside the shifting tidal environment of San Pablo Bay. Modern infrastructure, including the Pinole Shoal Channel, is juxtaposed with cultural landmarks such as Sunrise Memorial Cem and Hillside Cem. The southern shore reveals the complex interplay of marshland and development, specifically at George Whittell Marsh near Richmond. This record traces the evolved shoreline where residential neighborhoods like Vallejo Heights and Bayo Vista sit adjacent to established industrial sectors and historical naval sites, illustrating the late-twentieth and early-twenty-first-century character of this Northern California corridor.