Tuolumne County Board of Supervisors Chambers By Sabrina Biehl Published Aug 25, 2016 10:37 am Loading Map.... Tuolumne County Board of Supervisors Chambers2 South Greet Street, 4th Floor - SonoraEvents 37.984893 -120.38396090000003 Address 2 South Greet Street, 4th Floor Sonora, CA 95370 United States Upcoming Events No known events in this location