Take I-490 North to Route 104 East, Just west of the intersection of route 21.
From the New York State Thruway (I-90):
Traveling East or West on the New York State Thruway, take Exit 43, the Manchester / Palmyra exit. Go north on Route 21 turn left on to Route 104 (west)Approx. 1 mile on the left.
From Southern New York and Pennsylvania:
Take Route 15 North, which merges into I-390. From 390, you can get on the New York State Thruway (I-90) East, and then follow the directions above.