The way points of this bicycle route:
right on Maple Street
left on East Street
right on Rutland Street
left on North Road
jockey across lowell street onto curve street
right on Park Road (no sign I don't think, look for bog)
left on Proctor Road
jockey across 27 to get to Maple Road
stay on Parkerville
Right on Tadmuck
under 495
left on Main Street (next to Cemetery)
right on graniteville road
cross cold spring road
left on Bridge Street
left on N Main Street
right on West Street
Right on Haystack Observatory Road
straight on Millstone Road (not Hill)
cross 40, onto Granitville Road (West St)
right on N Main Street
bear left on Town Farm Road
cross Forge Village /Pine Street
left on 225
right on Beaverbrook Road
left on 119
Right on Russell Street
under 495
left on 2A
right onto Foster Street
bear left on Tattattawan
becomes Harwood (stay left)
stay on Harwood (stay left)
left on Newtown Road
right on Nashoba Road
right on Nagog Hill
left on 27
right on Brook Street
right on 119/2A
left on Strawberry Hill
left on Barretts Mill Road
right onto Lowell Road
get on 2A in Concord Center
left on Old Bedford Road
right onto Virginia Road
left on Old Bedford Road
Vandenberg Gate