Marconi, California

Marconi (formerly called Fisherman's) is an unincorporated community in Marin County, California. It is located on the northeast shore of Tomales Bay, about 7 mi south-southeast of the village of Tomales, at an elevation of about 70 ft above sea level. Marconi is located in the area of the town of Marshall, California.

The inhabitants of an old Native American settlement called "Fisherman's" later shipped seafood from here via railroad. Then, in 1913, the Marconi Wireless Company bought this site to establish a transpacific wireless telegraph station. The site was taken over by the federal government, who eventually released it to General Electric ownership. In the 1960s the facility was renovated to become a residential hotel, but it soon became an addiction-recovery facility operated by the Synanon cult. The California State Parks system took over the site in the 1980s, and now operates it as the Marconi Conference Center State Historic Park. The conference center is planned to be restored to a functioning hotel by late 2024.