Cobalt Lake
What to Expect
Safety Advisory
This is prime grizzly bear country — the Two Medicine valley is one of Glacier's most active corridors. Carry bear spray accessible on your hip, make noise on blind corners, and never hike alone if you can avoid it.
Afternoon thunderstorms roll in fast during July and August. The upper trail above treeline offers zero shelter, so check the forecast and plan to be descending by early afternoon.
Snow can linger on the upper switchbacks and near the lake well into July. Early-season hikers should be prepared for icy traverses on steep terrain — microspikes are worth the weight.
Trail Details
Pro Tips
Start early from the Two Medicine entrance — the parking area at South Shore fills up by mid-morning in July and August, and there's no overflow lot nearby.
The last reliable water source is along Two Medicine Lake's shore early in the hike. Carry at least two liters for the climb, as the upper switchbacks are bone-dry and fully exposed on warm afternoons.
The best light on Cobalt Lake hits in the morning when the sun illuminates the cirque walls behind the lake. Afternoon brings harsh shadows and often builds thunderheads, so photographers should aim to reach the lake by 10 AM.