Drive north of Challis, Idaho (between Challis and Salmon) on
Rt. 93 to milepost 270.7. Park here where a tiny drainage enters
from the east. The Natural Bridge is about 200 ft. up this drainage,
but it can be seen from the road. This tiny drainage is just south
of Allison Creek.
GPS coordinates for the parking area are:
UTM 12T 0263041 4960727 (WGS 84)