What is the distance from Trail BC to Boswell BC?

166 km

This is the route:

1. Take B.C. HIGHWAY 3B - EAST (towards SALMO), from Trail, to HIGHWAY 3 (CROWSNEST HIGHWAY) - EAST towards SALMO.
2. Take HIGHWAY 3 (CROWSNEST HIGHWAY) - EAST to HIGHWAY 3A - NORTH to the KOOTENAY FERRY; turn left.
3. Take HIGHWAY 3A - NORTH to Boswell.