Mummy Pass Trail (FS 937)Route (c) COTREX / Colorado Parks & Wildlife; RMNP continuation stitched from COTREX Mummy Pass Upper/Lower Trail; waypoints via COTREX/USGS. Trailhead / Emmaline Lake Trail jct (0.0 mi) Comanche Peak Wilderness boundary (0.5 mi) Rocky Mountain National Park boundary (3.5 mi) Mummy Pass, high divide crossing (~4.8 mi) West end - upper Cache la Poudre / Mirror Lake area jct (9.8 mi) Mummy Pass Trail