Napa in Napa County, California — The American West (Pacific Coastal)
Communal Mortar Rock
Photographed by Denise Boose, September 18, 2025
1. Communal Mortar Rock Marker
Erected 1962 by Napa Grange No. 307.
Topics. This historical marker is listed in these topic lists: Anthropology & Archaeology • Indigenous Peoples and Communities. A significant historical year for this entry is 1942.
Location. 38° 17.853′ N, 122° 17.118′ W. Marker is in Napa, California, in Napa County. It is at the intersection of Brown Street and 3rd Street, on the right when traveling south on Brown Street. To the right by the main doors of the Napa County Law Library. Touch for map. Marker is at or near this postal address: 825 Brown Street, Napa CA 94559, United States of America. Touch for directions.
Regionally, this marker is in California’s San Francisco Bay Area, in Wine Country, and on the Coast Ranges. It is also on the American Pacific Coast. Globally, it is in North America, on the Ring of Fire, in the Pacific Rim, in the Western Hemisphere, in the Western World, and in the Anglosphere. Historically, it finds itself in what was once New Spain and also Mexicos Alta California.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Napa Courthouse Flag Staff (within shouting distance of this marker); Napa County Courthouse (within shouting distance of this marker); Napa Valley Railroad (within shouting distance of this marker); Fremont's Crossing (about 300 feet away, measured in a direct line); Napa County Iraq and Afghanistan War Memorial (about 300 feet away); Oberon Saloon (about 400 feet away); Native Sons Hall (about 500 feet away); First Presbyterian Church Building (about 600 feet away). Touch for a list and map of all markers in Napa.
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Photographed by Denise Boose, September 18, 2025
2. Communal Mortar Rock Marker
Photographed by Denise Boose, September 18, 2025
3. Communal Mortar Rock Marker
Credits. This page was last revised on October 19, 2025. It was originally submitted on October 18, 2025, by Denise Boose of Tehachapi, California. This page has been viewed 34 times since then and 14 times this year. Photos: 1, 2, 3. submitted on October 18, 2025, by Denise Boose of Tehachapi, California. • Devry Becker Jones was the editor who published this page.
