This is another interesting video of the Trillium Railway operations circa 2012. The back story is that CP was on strike at the time, preventing Trillium from using its normal interchange at Feeder. Instead interchange was done with the CN at Merritton. The video shows that all three Trillium locomotives were called into action.
Trillium Railway Detour Interchange, Merritton, May 26, 2012
The video does show the differences in traffic between the north and south parts of the railway. The south part is dominated by tank cars and covered hoppers, while north of Merritton, boxcars and gondolas are more prevalent.