Greyrock Trail (FS 946)Route (c) COTREX / Colorado Parks & Wildlife; waypoints via PWV/USFS. Greyrock Trailhead (footbridge over the Poudre) Lower jct. Greyrock & Greyrock Meadows Trails (0.6 mi) Upper jct. Greyrock & Greyrock Meadows Trails (2.1 mi) Greyrock summit (3.1 mi via Greyrock Trail) Greyrock Trail