Commuter Bus
The 9A Rockland Coaches commuter bus connects Lamont-Doherty Earth Observatory with communities along U.S. Route 9W between New City and the George Washington Bridge bus station in Manhattan.
Visit the Coach USA Rockland Coaches website and search by origin and destination.
Columbia Shuttle
Columbia operates a free shuttle bus between Morningside campus and Lamont-Doherty Earth Observatory for Columbia University ID holders.