The mission of the Tuolumne Historical Railroad Association (THRA) is to preserve, enhance, and interpret the rich railroad history of Tuolumne County, California, and the surrounding region. We sponsor various projects and events for the benefit of Tuolumne County, the railroad community, and the public.
Welcome to Our Website!
THRA sponsors occasional excursion trains originating in Jamestown and Oakdale.
Sierra Railway Seminar
The Sierra Railway Seminar is a fun annual event featuring historical presentations.
Help us preserve, enhance, and interpret the rich railroad history of Tuolumne County.