Shannon-Williamson Ranch
Historic place
Shannon-Williamson Ranch is a historic place in Contra Costa County, California, listed on the National Register of Historic Places on 1987-01-29.
Place facts
- Category
- Historic place
- Resource type
- Historic district
- State
- California (CA)
- County
- Contra Costa County
- NRHP reference number
- 87000003
- Coordinates
- 37.95242, -121.76455
- Listed on the National Register
- 1987-01-29
- City
- Antioch
Location
Published coordinates: 37.95242, -121.76455. This point is calculated to fall on the mapped boundary below. It marks the resource, and it is not the centre or an address.
Sources
Every fact on this page comes from the registered datasets below, cited per claim and carried through an independently verified content release.
- Listing recordNational Park Service, nps.nrhp-listed (version 2026-05-22), NRHP reference 87000003
- CoordinatesNational Park Service, nps.nrhp-polygons-ca (version 2026-08-24), NRHP reference 87000003