From NYS Thruway I-90 :

Traveling east or west on the NYS Thruway, take Exit 43, the Manchester/Palmyra exit. Go north on Route 21 approximately to the Town of Williamson. Turn left (west) on to Main Street (Ridge Road ) at the four corners. Mason's Farm Market is about 2 miles outside of town on the right.

From Rochester, NY :

(Approximately 25 miles)

Take I-590 North to Route 104 East.

Take Route 104 East going pass Webster, Union Hill and Ontario to Fisher Road. A right onto Fisher Road and a left onto Ridge Road. Mason's Farm Market is a mile down on the left.