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Tom Origer & Associates (TOA) was established to assist public agencies, private firms, and individuals meet the requirements of local, state, and federal regulations regarding protection of cultural resources in a time- efficient and cost-effective professional manner. TOA has been providing consultation and research concerning archaeology, history, historic structures, and Native American issues primarily in northern and central California since 1983. 

We are a team of professional consultants qualified to design and implement studies for compliance with the laws of local, state, and federal regulations regarding protection of cultural resources. Our staff has a broad range of experience in prehistoric and historical archaeology, architectural history, faunal analysis, obsidian research, and historical research.

TOA maintains an extensive in-house research facility, with emphasis in California and the Great Basin. The library houses a variety of ethnographic and primary historical references for northern and central California counties.

Obsidian hydration dating and induced hydration services are available from our affiliate, Origer's Obsidian Laboratory (OOL). For more information on hydration, see our OOL page.

For more information about TOA and our services, please contact us.