Flathead National Forest, National forest in northwestern Montana, United States

Flathead National Forest is a federal forest in northwestern Montana, covering mountain ranges, glacial lakes, and river valleys along the western edge of the Rocky Mountains. It borders Glacier National Park to the north, and the two areas share much of the same terrain of conifer forest, open ridges, and river corridors.

This land was set aside as a federal forest in 1897, during a period when the US government began reserving large tracts of woodland from open settlement. Before that, the Salish and Kootenai peoples had used these forests, rivers, and mountains as a core part of their way of life for generations.

The forest sits alongside Glacier National Park, and many visitors move between the two without a clear boundary in mind. The Salish and Kootenai peoples have deep ties to this land, and that connection is still visible in place names and in the stories shared by local guides.

The forest has several entry points spread across its territory, and conditions vary widely depending on elevation and season. Higher trails are often accessible only in summer, and overnight trips into the more remote zones require a permit.

Within the forest lies a portion of the Bob Marshall Wilderness Complex, where no roads or motorized vehicles are allowed. That means you can walk for many hours, or even multiple days, without crossing a single road.