Mobile art gallery
Interstate State Park
6-8 p.m. Friday
• See ceramics, photography, glass, printmaking and paintings, all inspired by the St. Croix River. Show will last through the weekend. The gallery is near the glacial potholes parking lot. (651-465-5711 ext. 225; mndnr.gov/interstate)
Birding at Bear Head
Bear Head Lake State Park
8-10 a.m. Saturday
• Experienced birding guides will lead a stroll around the lake seeking Bear Head birds. Dress for the weather, insect spray is recommended, and meet at the parking lot. (1-218-235-2520; mndnr.gov/bearheadlake)
Wild fathers of nature
William O'Brien State Park
10-11 a.m. Saturday