Start from Bear Canyon trailhead and finish at Ice House Canyon trailhead.  It's best to park at Ice House Canyon parking lot but those fill up real quick.  You can easily find dirt parking along Mt. Baldy Rd between the start and finish- just make sure you park inside the white line to avoid getting ticketed.  It does not matter where you park since you'll be doing a loop.  Warm up and run down Mt. Baldy Rd to Mt. Baldy Lodge, find the church across the street.  Head up Bear Canyon Drive to the trailhead as you admire some pretty cool homes built in this area.

This route circumnavigates all of Mt. Greylock, hitting what I believe to be the most important waypoints along the way.  An ascent of the mountain, followed by a big loop to the north and to the west, a second summit, then a second loop back to the west and to the south  Three major climbs and almost 8000 total feet of gain. 

The route begins and ends at the Greylock Glen in Adams, MA. 

Trails taken include: