The Aboriginal Population of Alameda and Contra Costa Counties, California

The work compiles historical expedition accounts and archaeological evidence to reconstruct the precontact distribution, ecology, and population of indigenous groups along the east shore of San Francisco Bay and adjacent inland areas. It maps tribal territories and documented habitation sites, analyzes mission-era and exploratory reports to assess contact effects, and presents population estimates with discussion of methodology and sources. The author synthesizes environmental factors influencing settlement patterns, reports on material culture including watercraft and subsistence remains, and evaluates the reliability of documentary records. Accompanying maps and a bibliography support the regional survey and demographic conclusions.