Continental Divide National Scenic Trail

Glaciated cliffs along the Continental Divide National Scenic Trail in Flathead National Forest
The Chinese Wall rising above the Continental Divide National Scenic Trail in Flathead National Forest
Along the New mexico portion of the CDT

The Continental Divide National Scenic Trail is a 3,100-mile route that follows (or parallels) the imaginary line of the Continental Divide between Mexico and Canada. The trail was authorized under the 1978 National Trails Systems Act but at this point in time (2020), major sections of it are still unfinished.

 
Upper photo courtesy of the US Forest Service