National Register of Historic Places
Marconi Wireless-Synanon Tomales Bay Headquarters Historic District (Boundary Increase)
Marshall, Marin County, California
The record
- Listed
- January 31, 2025
- Type
- Historic district
- Address
- 18500 CA 1, Marshall
- County
- Marin
- State
- California
- Reference number
- 100011433