TACONIC STATE PARKWAY - from north or south
Take the Taconic State Parkway to the Route 203 / Chatham / Spencertown exit - onto County Road 61 just west of Taconic on north side of Route 203 - go up and over hill - cross Route 295 & RR tracks into village of Chatham - go around circle - bear right and continue 1 mile north on Route 66 - the entrance to PS/21 will be on the left.

INTERSTATE 90 - from east or west
Take I-90 and merge onto the Taconic State Parkway at exit B2 - south 2.6 miles and take Route 295 / East Chatham / Chatham exit - left on Hartigan Road - right onto Route 295 - south 2.3 miles and right on Austerlitz Street - go around circle - bear right - continue 1 mile north on Route 66 - the entrance to PS/21 will be on the left.

INTERSTATE 87 - NEW YORK STATE THRUWAY - from the south
Take exit 21 toward Catskill / Hudson - left on Route 23B - left onto Route 23 via ramp- east 5.8 miles over Rip Van Winkle Bridge - left onto Route 9 - north 2.6 miles - right at light onto Prospect Avenue - then slight right onto Columbia Street which becomes Route 66 - continue on Route 66 northeast for 13.6 miles - through the village of Chatham - go around circle - bear left and continue 1 mile north on Route 66 - the entrance to PS/21 will be on the left.

ROUTE 22 - from north or south
Take Route 203 from Austerlitz - west 6.7 miles to County Road 61- immediate right after Taconic State Parkway - go up and over hill - cross Route 295 & RR tracks into village of Chatham - go around circle - bear right and continue 1 mile north on Route 66 - the entrance to PS/21 will be on the left.