The 29-mile (47 km) trail follows a portion of the former alignment of the Milwaukee Road, which was constructed in 1911 and abandoned in 1973.

The trail begins at Rattlesnake Lake outside of North Bend and ends at McCormick Park in Duvall.

The Milwaukee Road constructed its Snoqualmie Valley branch in 1911, and began passenger service on April 21, 1912.

The trail intersects the eastern edge of a subdivision and crosses the South Fork of the Snoqualmie River.

The trail begins to head west and unofficially continues in an unimproved state for a quarter-mile east of Tokul Creek Road before reaching a gate at a property boundary.