 Boise National Forest is managed by the U.S. Forest Service , an agency within the Department of Agriculture , as five units called ranger districts . The ranger districts are Cascade ( 400 @,@ 000 acres or 1 @,@ 600 square kilometers ) , Emmett ( 350 @,@ 000 acres or 1 @,@ 400 square kilometers ) , Idaho City ( 400 @,@ 000 acres ) , Lowman ( 400 @,@ 000 acres ) , and Mountain Home ( 650 @,@ 000 acres or 2 @,@ 600 square kilometers ) ; each has an office in their respective cities and is managed by a district ranger , while forest headquarters are located in the city of Boise . Congress proclaimed 2 @,@ 648 @,@ 273 acres ( 10 @,@ 717 @.@ 18 km2 ) of Idaho part of Boise National Forest , but the forest manages only 2 @,@ 203 @,@ 703 acres ( 8 @,@ 918 @.@ 07 km2 ) . The proclaimed boundary is set and can only be changed by Congress whereas the administered boundary can be shifted among adjacent national forests without congressional approval . For management ( and from the visitor 's perspective ) the forest 's boundaries are its administered area . 
 Boise National Forest is managed by the U.S. Forest Service , an agency within the Department of Agriculture , as five units called ranger districts . The ranger districts <a href='drop_aux' title='1'><mark>are</mark></a>Cascade ( 400 @,@ 000 acres or 1 @,@ 600 square kilometers ) , Emmett ( 350 @,@ 000 acres or 1 @,@ 400 square kilometers ) , Idaho City ( 400 @,@ 000 acres ) , Lowman ( 400 @,@ 000 acres ) , and Mountain Home ( 650 @,@ 000 acres or 2 @,@ 600 square kilometers ) ; each <a href='got' title='2'><mark>has</mark></a> an office in their respective cities and is managed by a district ranger , while forest headquarters are located in the city of Boise . Congress<a href='been_done' title='3'><mark></mark></a> proclaimed 2 @,@ 648 @,@ 273 acres ( 10 @,@ 717 @.@ 18 km2 ) of Idaho part of Boise National Forest , but the forest <a href='uninflect' title='4'><mark>manages</mark></a> only 2 @,@ 203 @,@ 703 acres ( 8 @,@ 918 @.@ 07 km2 ) . The proclaimed boundary is set and can only be changed by Congress whereas the administered boundary can be shifted among adjacent national forests without congressional approval . For management ( and from the visitor <a href='null_genetive' title='5'><mark>'s</mark></a>perspective ) the forest <a href='null_genetive' title='6'><mark>'s</mark></a>boundaries <a href='drop_aux' title='7'><mark>are</mark></a>its administered area . 
Boise National Forest is managed by da U.S. Forest Service , an agency within the Department of Agriculture , as five units called ranger districts . Tdaranger districts Cascade ( 400 @,@ 000 acres or 1 @,@ 600 square kilometers ) , Emmett ( 350 @,@ 000 acres or 1 @,@ 400 square kilometers ) , Idaho City ( 400 @,@ 000 acres ) , Lowman ( 400 @,@ 000 acres ) , and Mountain Home ( 650 @,@ 000 acres or 2 @,@ 600 square kilometers ) ; each got an office in their respective cities and is managed by a district ranger , while forest headquarters r located in thdaity of Boise . Congress been proclaimed 2 @,@ 648 @,@ 273 acres ( 10 @,@ 717 @.@ 18 km2 ) of Idaho part of Boise National Forest , but thedarest manage only 2 @,@ 203 @,@ 703 acres ( 8 @,@ 918 @.@ 07 km2 ) . The proclaimed boundary is set and can only b changed by Congress whereas the administered boundary can be shifted among adjacent national forests without congressional approval . fir management ( and from the visitor  perspective ) the forest  boundaries its administered area .