  thumb|290px|right|map of idaho showing location of thefrank church-river of no return wilderness the frank churchâriver of no return wilderness area is a protected wilderness area in idaho. it was created in 1980 by the united states congress and renamed in 1984 as the frank church-river of no return wilderness area in honor of u.s. senator frank church. at , it is the second largest protected wilderness in the contiguous united states, after death valley. nicknamed "the frank," the wilderness protects several mountain ranges, extensive wildlife, and a popular whitewater rafting river: the salmon river. ==description== together with the adjacent gospel hump wilderness and surrounding unprotected roadless forest service land, it is the core of a 3.3 million acre (13,000&nbsp;kmÂ²) roadless area. it is separated from the selway-bitterroot wilderness, to the north, by a single dirt road (the magruder corridor). the wilderness contains parts of several mountain ranges, including the salmon river mountains, the clearwater mountains, and the bighorn crags. the ranges are split by steep canyons of the middle and main forks of the salmon river. the salmon river is a popular destination for whitewater rafting, and is colloquially known as the "river of no return" for its swift current which makes upstream travel difficult. most of t
Bitterroot_National_Forest Boise_National_Forest IUCN_Category_Ib Nez_Perce_National_Forest Payette_National_Forest Protected_areas_established_in_1980 Protected_areas_of_Custer_County,_Idaho Protected_areas_of_Idaho_County,_Idaho Protected_areas_of_Lemhi_County,_Idaho Protected_areas_of_Valley_County,_Idaho Regions_of_Idaho Salmon-Challis_National_Forest Wilderness_Areas_of_Idaho