Tuolumne Historic Railroad Association, Inc.

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.

Join Us!

THRA Membership

THRA Membership

Help us preserve, enhance, and interpret the rich railroad history of Tuolumne County. Members also receive multiple discounts.

Railway Seminar

Tuolumne Railroad Weekend
April 17-19, 2026

This fun and educational annual event will include an excursion train, the West Side Reunion, a special Banquet and Raffle, and the Sierra Railway Seminar.

Excursion Trains

Train Excursions

THRA sponsors occasional excursion trains originating in Jamestown and Oakdale.

Table Mountain field trip

Field Trips & Other Events

At various locations and times of the year, THRA organizes opportunities to gather and learn about specific Tuolumne railroad topics.