The way points of this bicycle route:
get off bike trail R South
L Great Rd / 225 / 62 / 4
L to stay on 225 (Carlisle, becomes Bedford)
R fork to get on Maple
L East St
R Rutland St
L North Rd
cross Lowell (QR, L) Curve St
R Fiske St (b Elm)
R Acton Rd / 27
L Maple
L fork Parkerville (b S Chelmsford)
R Tadmuck
L Main
R Providence (m Cummings)
L Lowell
R fork Depot
L fork Dunstable (b Scribner)
L Groton / 40
R Gould
L fork Keyes (b Davis)
L fork Davis
L Groton
R Massapoag Rd (b Pond)
(T) R Pleasant
L Main (b Gregg)
L Main Dunstable Rd / 111A (b Groton, S Depot)
L fork to stay on Groton (b Hollis)
R get on bike trail
L to head south on Bike trail
L Main St
L Columbia, QR Central
R cut back onto Sandy Pond
270 around rotary onto Littleton (effectively L)
R Shaker
(T) R Littleton
Harvard General Store :)
L fork Mass Ave / 111
R fork Stow
cross W acton onto S Acton
straight fork on S Acton (b Stow, Maple)
L QR School
R fork stay on School (b Lawsbrook, Main)
Concord :) go out Bedford / 62 (b Concord)
R Woodmoor
L Fern Way
L Winchester (b Railroad)
get on bike trail