CSX trains M620 and M621 passing at DeWitt Yard

CSXT 451 and CSXT 8907 leads M620 west on the North Runner at DeWitt Yard. M620 will head west to CP291, then head north on the St. Lawrence Subdivision.

  Trains M620 and M621 are a pair of daily trains that run between Massena, New York, and Selkirk, New York, by way of Syracuse, New York. Prior to midnight on June 4, 2022, the two trains were symbolled Q620 and Q621. M620 and M621 are the only regularly scheduled through-freight trains on CSX's St. Lawrence Subdivision between Syracuse, New York, and Massena. M620 is the westbound-northbound train, and M621 is the southbound-eastbound train. The two trains are classified as manifest freight trains, but often carry a block of intermodal cars. 

CSXT 3345 and CSXT 7021 lead M621 east on Track 1 of the STS at CP285. In the background, M620 is westbound.

Aside from being daily trains, there is no schedule for the two trains' arrival and departure at DeWitt Yard. I've seen and heard these two trains arrive at, and depart, Syracuse at all times of the day. However, over the last couple of weeks, it has been typical for M621 to get into Syracuse between 9 AM and Noon. Generally, M621 gets from Watertown, New York, to Syracuse, New York, in two and a half hours.

M621 rolls east along East 1st Street, on the southern edge of DeWitt Yard. M620 is in the background.

Photographs taken on June 10, 2022, at East Syracuse, New York.