From this byway in the Targhee National Forest you can hear the thunder of both Lower and Upper Mesa Falls as the Henrys Fork of the Snake River drops into pools below. These are two of the last undisturbed waterfalls of consequence in the west. Lower Mesa Falls is 65' high and viewed from high above the falls. Upper Mesa Falls is 112' and has viewing platforms, restrooms and a visitors center. This byway is 28.7 miles; it is closed in winter and groomed for snowmobiliing and Nordic skiing. Full services are available in Ashton. Take Hwy. 47 from Ashton to Forest Service Road 294.
Eastern Idaho, NE of Rexburg
Take Hwy. 47 east from Ashton and follow signs to see the both Upper and Lower Mesa Falls