Oddity Railroads of California
From PacificNG
Oddities.
Sonoma Valley Prismoidal Railway.
Prismoidal Railway. Considered to be the first monorail system in California. The Sonoma Valley Prismoidal was constructed following the Crew Patent One-Rail Railway system. The line operated a short 6 months before being declared a failure. Portions were later converted to 36in gauge as part of the Sonoma Valley Railroad.
Norwalk to Schelleville, Sonoma County. 1876