Chippewa National Forest Pine Trail is a standout hiking destination in Cass Lake, MN, covering 6.0 miles with 200ft of elevation change. Stats: 6.0 miles, 200ft gain, Easy. Type: Loop. Surface: Dirt. Time: 3 hours. Fee: Free. Dogs: Yes, on leash. Permit: No. Wildlife: moose, eagles, loons. Best seasons: Largest national forest in Minnesota. Pack water, layers, and appropriate footwear. Conditions vary across MN. Leave No Trace: stay on trail, pack out all waste, respect wildlife.