QR 86.4 - Wilbur Trestle (best viewed from the Old Rt. 9W suspension bridge, 1/2 mile east) MP QR 86.8 - Kingston Tunnel MP QR 88.8 - Kingston Yard MP QR 92.3 - Glenerie Falls Trestle MP QR 99.1 - Saugerties defect detector MP QR 102.1 - West Camp S-Curve (a popular railfanning spot on Rt. 9w) MP QR 104.8 - Alsen Yard MP QR 108.1 - Catskill defect detector MP QR 110.2 - Catskill Trestle MP QR 114.9 - Athens defect detector MP QR 123.8 - Ravena Curve (a popular railfanning location on Rt. 9w) MP QR 128.5 - Ravena defect detector MP QR 132.6 - CP-SK / Selkirk: northernmost point of River Subdivision, turns west and merges into Castleton Subdivision and Selkirk Yard. At Selkirk, New York, the River Subdivision ends at "CP-SK" (MP QR 132.6) where it curves west and merges into the Castleton Subdivision, and of which this location is the extreme eastern end of Selkirk Yard. Also at this point CP-SK, the Port Subdivision branches north towards Albany off the Castleton Subdivision (but is not directly accessible by the River Subdivision). The Port Subdivision ends 7 miles north of CP-SK in South Albany, NY at the Kenwood Yard of the Canadian Pacific Railway. Also at CP-SK, an eastbound connector from the River Subdivision is available for trains to progress east onto the Castleton Subdivision and over the Hudson River (to points east, via the CSX Berkshire & Boston Subdivisions). The Castleton Sub was originally built as part of a bypass for through trains around Albany that opened in 1924. The configuration of the track work at CP-SK between the River Subdivision, Castleton Subdivision including the "east wye track", form a triangle: a "wye" in railroad parlance; on which locomotives can be turned if need be. Radio frequencies Radio transmissions between trains and dispatcher operating upon the CSX River Subdivision is assigned to the CSX 'NI' Dispatcher Desk, and can be heard on the following frequencies: AAR Channel 58 - 160.980 - road AAR Channel 34 - 160.620 - dispatcher to train Also, if in close proximity to them, "Hot Box", High Wide "HIWI" or Defect Detectors can be heard relaying train info (speed, axle count, defects if any (hot boxes or dragging equipment) to the train on the aforementioned road channel. Location - Milepost (FCC registration ID) (from south to north) - New Jersey -