Wayland Town Crier 4/1/16: Push to save Mainstone Farm in Wayland. At more than 200 acres (the largest tract of undeveloped open space in MetroWest), Mainstone Farm in Wayland rises gently from Old Connecticut Path between Rtes. 27/126 and 20, and offers incomparable views, sweeping vistas … and cows. The community has a chance to preserve this resource for generations to come with the acquisition of a permanent conservation restriction that will extinguish development rights on the property.