2020 Map of Reas Pass

About this map

Reas Pass serves as a critical geographic marker along the high border where Idaho and Montana meet, bisected by the Continental Divide National Scenic Trail. This area is defined by the sharp transition between the Gallatin National Forest to the north and Targhee National Forest to the south. The landscape is carved by drainage systems like the S Fork Madison River and Thirsty Cr, which navigate the complex terrain of the Henrys Lake Mountains and the Madison Cream Divide.