Heart Lake is a glacial valley lake within the Scapegoat Wilderness of Helena National Forest. Located north of Lincoln, Montana, Heart Lake sits in a cirque five miles west of the Continental Divide. It is home to Arctic grayling and westslope cutthroat trout. The lake is approximately from the Indian Meadows Trailhead. A trail on the east side of the lake goes to Pearl Lake and the top of the divide.