from:
http://fishandgame.idaho.gov/cdc/cdc_pdf/U87GRO03.pdf
Salmon National Forest: Only one sighting of a grizzly bear was
located on the Salmon National Forest (Report No. 110). This
observation occurred on the West Fork of Hughes Creek near the
Montana border in 1977 (Fig. 4).
Payette National Forest: Two accounts of grizzly bears were
located on the Payette National Forest, and both occurred
within the Frank Church River of No Return Wilderness (Nos.
153, 168). Diggings by a grizzly bear were observed on
California Creek in about 1976 and tracks were seen on Wolf
Fang Creek in 1983 (Fig. 4).
Boise National Forest: Four sightings of grizzly bears were
made on the Boise National Forest between 1976 and 1986 (Nos.
88, 90, 111, 154). These sightings occurred near Shellrock Lake
in 1976, Alexander Flats in 1976, Warm Springs Landing Strip in
1983, and Silver Creek Lookout in 1986 (Fig. 4).
Challis National Forest: Three sightings of grizzly bears were
observed on the Challis National Forest between 1976 and 1985
(Nos. 87, 91, 101). These sightings were located on Willow
Creek Summit in 1976 (actually on BLM land), the Yankee Fork in
1984, and Cape Horn Creek in 1985 (Fig. 4).