Just outside the quiet town of Mackay, Pass Creek Road invites exploration into the scenic high desert and foothills of Idaho’s Lost River Range. This well-maintained backroad winds through sagebrush valleys, crosses small creeks, and hugs rugged hillsides as it leads into the striking Pahsimeroi and Little Lost River Valleys.
Historically used by pioneers and ranchers, the route is now an accessible overland path into Idaho’s expansive backcountry. Most vehicles can handle it in dry conditions, but it turns slick when wet and may close in winter due to snow. Summer and early fall are ideal for travel, just prepare for dust and solitude.
Camping is available at the Pass Creek Narrows Camping Area, which offers seven dispersed sites with space for trailers or roof-top tents. There are no services, so come self-sufficient and pack out everything you pack in.