Iceberg Lake is a popular hiking destination in Glacier National Park located in the northern part of Montana. The lake is known for its crystal-clear blue water, surrounded by towering mountains and glaciers. The trail to Iceberg Lake is a 9.7-mile round trip hike with an elevation gain of approximately 1,200 feet. The hike is considered moderately difficult with some steep sections and rocky terrain. However, the stunning views of the surrounding scenery make it well worth the effort.