1.2 hr
Pick up where the Colby Trail ends and use this trail to get up to Glendora Ridge Motorway. It's a steep singletrack that might require you to hike-a-bike a few yards at the start if your granny gear isn't doing the job. At the top of Upper Colby there's a nice view and you can either head west to Azusa Peak or go east and head down Glendora Mountain Road. Watch out for loose dirt on your climbs. <br><br>There isn't much shade on this trail, so bring lots of water. Especially if you're coming from Colby Trail.