Labor Day Sunday Hike. Loop from the East Keystone Trailhead on Peavine Peak, starting on the West Keystone Connector Trail, then following a less-established single-track trail up a drainage marked by green surveyor flags where it branches off, then aluminum cans on bushes. This trail dies out about 200 m from the Halo Trail, where there is a rock cairn and some poles marking the connection.  Then followed the Halo Trail and another single track, descending via Keystone Canyon.

Statistics:
7.68 mi (3.02 mi uphill, 3.85 mi downhill, 0.80 mi flat)
950 ft total ascent 11.3 % uphill grade, 26.3 % downhill grade
2:52:24 total time (2:46:45 moving, 0:05:39 stopped)
0:21:41 pace (2.8 mph average speed)
8.5 difficulty, 17.7 effort