A chase of the Housatonic's NX-13 was quickly coming to an end on May 18, 2018. In what could have been my only chance to follow this job this year, slower speeds through the area had let me get ahead of the train even with moderate traffic back in Stockbridge, MA. Waiting for just a couple minutes at the Route 102 bridge in Lee, the sun came out full in time for one more shot at GP35s 3602 and 3604 leading 25 cars toward Pittsfield and the CSX interchange. A nice toot from the engineer concluded the short but very satisfying pursuit.