Geology walk
Whitewater State Park
6-7 p.m. Friday
Travel through time to learn about the geologic processes that formed the beautiful Whitewater River Valley, and the influence of oceans, glaciers and raging rivers. Meet at the Chimney Rock trailhead near the beach. (1-507-312-2300, mndnr.gov)
Stories in the stars
Gooseberry Falls State Park
8-9 p.m. Friday
The Ojibwe Indians used the stars as a way to remember the oral history of their people and to mark the seasons. The program starts at Lady Slipper Lodge, then moves to the picnic flow to view the Ojibwe constellations. Bug spray and flashlight recommended. (1-218-595-7100, mndnr.gov)
Fly-fishing clinic