Hello,
I was interested in CN9634's comment about "vented C plate cars" ... what are vented boxcars? I did a search online and it seems that these are often used in wood pulp service. I wonder if the CN 412000-415000 and NS 458000 and SOU 500000 series boxcars are vented boxcars, as these cars often come east loaded and return west unloaded. I would guess these are loads of wood pulp. A few of the CN ones have been going loaded westbound recently.
Are there vented Plate F boxcars (hi cubes)? A large number of these come east as loads as well (TBOX, DWC, CN, some NS, rare BNSF) ... I would guess these are bringing some kind of lumber product east.
There's also a bunch of hi cubes (FBOX, SRY, COER, TR, MSDR) and regular boxcars (MEC, SNC, LRS, occasional SLR) that move west loaded. I assume these are loads of paper from Maine.
Anyhow it is very interesting to follow the boxcar traffic and try to learn more about what's being moved where.
Best,
Fritz