Finding U.S. heritage offices and archaeological records
Start with the place and the question, then choose the institution. A preservation office, a Tribal office, a repository and a local society serve different purposes.
Updated 31 October 2026 · archaeology.pro editorial
Choose the right first contact
State Historic Preservation Offices contribute to identifying and evaluating historic places. Use the National Park Service directory to find the relevant state office. Tribal Historic Preservation Offices are distinct: use NATHPO to locate Tribal programs rather than treating a state office as a substitute.
Prepare a useful inquiry
Record the state, county, general research area, project name and any existing report or accession number. Explain whether you need a published report, a collection appointment, a preservation contact or guidance on an existing record. Ask the office where your inquiry belongs if its remit is unclear.
Follow the record to its repository
In Texas, TARL is a starting point for collection and research questions; the Texas Historical Commission serves a different preservation role. Before arranging a visit, ask who holds the records, what identifiers are needed and whether access is restricted. A directory listing does not grant access, excavation permission or reproduction rights. Keep the institution’s reply with your research notes.