This is a smooth sometimes rocky singletrack that connects Keystone Resort with Keystone Gulch.On your bike follow East Keystone Road through the resort watch for a sign for Granny's Trail. From here the trail parallels Keystone Road to Keystone Gulch. It's about 2 miles fom the parkinglot to Keystone Gulch.
From Denver take I-70 west to the Loveland Pass exit #216 follow Hwy 6 over Loveland Pass to Keystone [about 12 miles] turn left on Gondola rd.[the first the left you can make just past the overpass] follow East Keystone Rd. to the right park at the dirt lot on the right.
http://www.singletracks.com/item.php?c=1&i=1702