The Lost Lake trail begins at Red Sandstone Road #700, passes Lost Lake, and ends at Lost Lake Road #786: From the west trailhead, the trail follows a ridge dividing the Piney and Red Sandstone drainages while traveling though lodgepole pine and aspen groves. The trail gradually climbs 600 feet to the trail's high point then drops slightly to Lost Lake. Continue .75 mile on the trail to reach the east trailhead. This portion of the trail passes through forest and meadows and crosses Red Sandstone Creek. * There is a printable Recreation Quicksheet for this trail which is complete with directions, a map, details, and other information about this trail. Or to see quicksheets for other recreation areas across the Forest, click on the "Recreation Quicksheets" link in the right column and select the appropriate Ranger District.