Lamont Doherty Earth Observatory

By Car From Westchester
Take I-287 west across the Tappan Zee Bridge. Take the first exit after the bridge (Exit 10 Nyack). Proceed South on Rte. 9W for a distance of approximately 5 miles. Lamont-Doherty will be on your left.

By Car From New York City & Long Island
Take the upper level of the George Washington Bridge to the first exit (Palisades Interstate Parkway). Proceed north on the parkway for a distance of approximately 10 miles to Exit 4 (Rte. 9W). At the end of the exit ramp at the stop light, turn left onto Rte. 9W North and proceed north for a distance of approximately 200 yards. Lamont-Doherty will be on your right.

By Car From Upstate New York and Northern New Jersey
Via the New York State Thruway Southbound: Take the Thruway South to Exit 13 (Palisades Interstate Parkway South). Proceed on the Parkway south for a distance of approximately 10 miles to Exit 4 (Rte. 9W). At the end of the exit ramp, turn right onto 9W North. Proceed on 9W for a distance of approximately 1 mile. Lamont-Doherty will be on your right.

By Car From New Jersey
Via Route I-80 and points West: Take Rte. 80 East (remain in local lanes) to the Palisades Interstate Parkway exit just before the George Washington Bridge. Follow signs to the Palisades Interstate Parkway. Proceed north on the Parkway for a distance of approximately 10 miles to Exit 4 (Rte. 9W). At the end of the exit ramp at the stop light, turn left onto Rte. 9W North and proceed north for a distance of approximately 200 yards. Lamont-Doherty will be on your right.

Via Route I-95 and points South: Take Rte. 95 North to Rte. I-80 East (remain in local lanes) to the Palisades Interstate Parkway exit just before the George Washington Bridge. Follow signs to the Palisades Interstate Parkway. Proceed north on the Parkway for a distance of approximately 10 miles to Exit 4 (Rt. 9W). At the end of the exit ramp at the stop light, turn left onto Rt. 9W North and proceed north for a distance of approximately 200 yards. Lamont-Doherty will be on your right.