The Crowsnest Highway's western terminus is at Hope, where it branches off from the Trans-Canada Highway (Highway 1). The highway goes east for to its junction with the Coquihalla Highway (Highway 5), where it exits the freeway and continues for on a segment known as the Hope-Princeton Highway, passing the Hope Slide en route to Allison Pass, Manning Provincial Park, and Sunday Summit; at Princeton, the Crowsnest Highway meets Highway 5A. East of Princeton, the Crowsnest Highway goes southeast for to Keremeos, where it meets Highway 3A, leading towards Penticton and Highway 97. Another southeast, and the Crowsnest Highway reaches Osoyoos and a junction with Highway 97.