Tuolumne County Historic Preservation Review Commission, 4 to 6 p.m., Community Development Department conference room, fourth floor, A.N. Francisco Building, Sonora.
Mother Lode Fair, exhibits committee, 4:30 p.m.; entertainment, marketing and promotions, 5:30 p.m.; buildings, grounds and interim events committee, 6:30 p.m., Mother Lode Fairgrounds, 220 Southgate Drive, Sonora.
Curtis Creek School District Board of Trustees, 5:30 p.m., school, 18755 Standard Road, Sonora, 532-1428.
Mental Health Services Act Leadership, 5:30 p.m., Tuolumne County Public Health Department, Conference Room, 20111 Cedar Road North, Sonora.
Columbia School District Board of Trustees, 6 p.m., school, 22540 Parrotts Ferry Road, Columbia, 533-7700.
Summerville Parent Nursery School parents' meeting, 6:30 p.m., Arastraville School, Tuolumne Road North, Tuolumne, 928-4288, 586-7666.
Tuolumne County Democratic Club, 6:30 p.m., Pine Tree Restaurant, Mono Way at 19601 Hess Avenue, East Sonora, 586-5942.
Golden Heritage District Committee, Boy Scouts of America, 7 p.m., Tuolumne County Sheriff's Department Community Service Unit office, The Junction shopping center, East Sonora.
Mi-Wuk-Sugar Pine Fire Protection District Board of Directors, 7 p.m., fire station, 24247 Highway 108, Sugar Pine.
Tuolumne Utilities District Board of Directors, 7 p.m., district office, 18885 Nugget Blvd., off Tuolumne Road.
Vietnam Veterans of America, Chapter No. 391, 7 p.m., Veterans Memorial Hall, 9 N. Washington St., Sonora, 532-2052.
Toastmasters, Tuolumne Talkers, 6:45 a.m., Papa's New Roost, 20049 Highway 108, near Soulsbyville, 586-4705.
Senior Legal Advocacy, 10 a.m. to noon, Tuolumne County Senior Center, 540 Greenley Road, Sonora; and 1 to 3 p.m., 14855 Mono Way, Suite 103, East Sonora, 588-1597.
Mi-Wuk-Sugar Pine Volunteer Fire Department Auxiliary, noon, fire station, 24247 Highway 108, Sugar Pine.
Cedar Ridge Volunteer Fire Department Auxiliary, 12:30 p.m., Cedar Ridge, 586-0853, 586-1283.
"Science or Magic," 2 and 3 p.m., Tuolumne County Library, Greenley Road, Sonora, 533-5507.
Tuolumne County Resource Conservation District, 4 p.m., Tuolumne County Administration Center, supervisors' chambers, 2 S. Green St., Sonora.
Tuolumne Village Market, 4 p.m. to dusk, Tuolumne Memorial Park, Tuolumne, 928-4351.
Friends of Columbia State Historic Park, 4:30 p.m., Eagle Cotage, Columbia State Historic Park, 533-1852.
Promotion Club of Jamestown, 6:15 p.m., Community Hall, Main Street, Jamestown, 352-5023.
Big Oak Flat/Groveland Unified School District Board of Trustees, 6:30 p.m. Call 962-5765 for location.
American Brotherhood Aimed Toward Education (ABATE), 7 p.m., Hillside Family Restaurant, 14715 Mono Way, East Sonora, 984-4888.
Southern Tuolumne County Planning Commission, 7 p.m., Groveland Community Hall, Main Street, Groveland.
Tuolumne Park and Recreation District Board of Directors, 7 p.m., district office, 18603 Pine St., Tuolumne.
Tuolumne Hose Co. No. 1 fire commission, 8 p.m., Tuolumne Firehouse, 18650 Main St., Tuolumne, 928-4505.
Murphys Town Hall meeting, "Health Care in the Mother Lode," hosted by Murphys Community Club, 7 p.m., Native Daughters Hall, 268 Main St., Murphys.
Calaveras County Farm Bureau, 7 p.m., Grange Hall, San Andreas, 772-3987.
Calaveras Public Utility District, 7 p.m., 152 St. Charles St., San Andreas, 754-9442.
Calaveras Unified School District Board of Directors, 7 p.m., 3304 B Highway 12, Suite B, San Andreas.
Mark Twain St. Joseph's Health Care Trustee board, 7:30 a.m., Mark Twain St. Joseph's Hospital, 768 Mountain Ranch Road, San Andreas, 754-3251.
Friends of the Library, 10 a.m., Calaveras Central Library, 891 Mountain Ranch Road, San Andreas.
Story Time, 11 a.m. and 3 p.m., Calaveras Central Library, 891 Mountain Ranch Road, San Andreas.
Valley Springs Chamber of Commerce, noon, call for location, 772-3245.
Calaveras County Sheriff's Explorer Post, 2 p.m., sheriff's office, 891 Mountain Ranch Road, San Andreas.
Murphys Fire Protection District, 6 p.m., Station No. 1, 37 Jones, Murphys, 728-3864.
Calaveras County Fair Board, 6:30 p.m., administrative building, Frogtown, Angels Camp, 736-2561.
Council of Governments, 6:30 p.m., supervisors chambers, Government Center, 891 Mountain Ranch Road, San Andreas, 754-2094.
San Andreas Fire District, 7 p.m., 37 Church Hill Road, San Andreas, 754-4693.
(For arts and entertainment listings, see Weekend Thursdays. The Union Democrat Calendar attempts to list all non-commercial events of public interest in the Tuolumne and Calaveras county areas. Contributions are welcome. Call The Union Democrat, 588-4541, visit the office, 84 S. Washington St., Sonora, or e-mail us at: email@example.com .)