Box cars on the move in Douglas

This picture shows 2 GP9's and a caboose arriving in Douglas after dropping off 5 empty cars in Alstown. They arrived to see empty box cars that had drifted onto the mainline from the Douglas siding.  I was told that sometimes empties would be pushed out onto the mainline to clear up the siding as long as they didn't get away.  October 28, 1983 photo by John P. Henderson.