A single-track loop trail from the East Keystone Canyon Trailhead on Pyramid Peak. Not sure whether this is the loop indicated on the East/West Keystone Connector trail sign. Took the upper fork past the park bench.

Statistics:
4.16 mi (1.76 mi uphill, 1.80 mi downhill, 0.60 mi flat)
600 ft total ascent – 13.6 % uphill grade, 24.0 % downhill grade
1:23:55 total time (1:21:53 moving, 0:02:02 stopped)
0:19:41 pace (3.0 mph average speed, 5.8 mph max speed)
6.9 difficulty, 16.3 effort

Geotag Icon GeoLocator for latitude 39.5502205 longitude -119.8488235