The Slesse Mountain Trail is an access point along Slesse Creek in the Cascade Mountains near Chilliwack, British Columbia.

The trailhead is reached via a rugged Forest Service Road off Chilliwack Lake Road that requires a high-clearance 4x4 vehicle due to washouts and large rocks.

The trail is well known for its historical significance, passing a memorial plaque and crash site commemorating one of Canada's worst aviation disasters — a December 9, 1956 plane crash on Mount Slesse.

The route continues up to the base of the mountain to a propeller cairn, where a piece of propeller and other artifacts from the wreck are preserved.

The out-and-back trail covers roughly 8–11 miles depending on the route, with significant elevation gain, and is rated challenging.