The 42nd Annual Round Valley Blackberry Festival again takes place the third weekend in August, offering children’s activities, arts and craft booths, live music, square dancing, Mendocino County wines, a variety of blackberry delicacies, and more. The festival is a project of the Friends of the Round Valley Public Library. Admission is free. 10 a.m.–6 p.m. Saturday, August 16 and 10 a.m.–5 p.m. Sunday, August 17. Covelo. For more event details, visit roundvalleyblackberryfestival.com.