Should be 155.820, they are part of the Capital-Saratoga Region of NYS Parks and Historic Preservation. Their dispatcher is at the Saratoga National Park. They also have comms with Rensselaer County BPS, and NYSP.
159.270 [123.0] - NYS Parks Police - Saratoga Capital Region
155.820 [123.0] - NYS Parks Maintenance - Saratoga Capital Region
159.330 [94.8] - NYS ENCON Law Enforcement - Region 4
159.435 [various] - NYS ENCON Forest Rangers - Region 4
Plus, a couple of old reliables...
155.655 [156.7] - Rensselaer County Sheriff's Department F-1
154.815 [167.9] - Rensselaer County Sheriff's Department F-2
155.370 [CSQ] - New York Statewide Police M.R.D.