On Hwy 92, seven miles east of American Fork, Timpanogos Cave National Monument covers 250 acres in the American Fork Canyon on the north slope of Mount Timpanogos. Three large limestone caverns are connected by man-made tunnels. The cave entrance is about a thousand feet above the canyon floor.
Tickets for cave tours must be purchased at the visitor center before hiking up the trail. The center and the cave are open from mid-May through mid-October.