From Route 3 New Hampshire

Heading south on Route 3 take exit 5W and then take a left onto Route 111; if you are heading north on Route 3 take exit 5E and merge onto Route 111. Continue on Route 111. You will cross the state line into Pepperell, Massachusetts. Travel about 2.8 miles and you will come to a stop sign. Take a left and continue on Route 111 until you reach a rotary. Take the second right at the rotary, staying on Route 111. At the intersection of Routes 111 and 119 take a right, in about ½ a mile take a left at the flashing yellow light onto Shirley Road. Shirley Road will change into Pepperell Road. Continue on Pepperell Road until you come to a stop sign—the West Groton Post Office will be on your left. Take a sharp left onto West Main Street. In about 1/3 of a mile you will see Blood Farm on your right.

From Route 495

Heading south on Route 495 take exit 31 and then take a left onto Route 119 west; if you are traveling north on Route 495 take exit 31 and then take a right onto Route 119 at the end of the exit ramp. Follow Route 119, Main Street, into Groton Center. After passing the Groton town hall Route 119 forks. At the fork take a left heading towards Ayer, continue on Route 225 for about 7/10 of a mile and then take a right onto Long Hill Road. Continue on Route 225 for about 2 miles. Blood Farm will be on your left.