Powell Junction is a geographic place name in northeastern Idaho County, Idaho, United States. It is not a community nor has it ever been a place of habitation. There have been three different geographic locations that have carried the name Powell Junction. All three locations are to the north, and slightly west, of Powell Ranger Station. The first Powell Junction was on the Lolo Trail on the high ridge to the north of the ranger station. The trail to the ranger station left the junction and went down Parachute Hill to the ranger station on the north bank of the Lochsa River and south of U.S. Route 12. The second use of the name occurred in 1935 when the Lolo Motorway and the road to Rocky Point Lookout were joined by construction. In recent times, the name has been applied to the junction of the Lolo Motorway and U.S. Route 12.