Blacksmith Ridge Trail via Smith-Dorrien Creek is a 4.2-mile out-and-back, climbing from a roadside access beside Smith-Dorrien Creek to an open ridge. Allow about four hours and roughly 2,100 feet of ascent. It is an informal, unmaintained route for hikers comfortable with steep climbs and navigation off signed trails.
The route begins near the Smith-Dorrien/Spray Lakes Trail. Current legal parking and access signage were not confirmed, so verify the exact roadside access before setting out. Do not use the separate Black Prince Day Use Area as the trailhead. Water and toilets at the start have not been confirmed.