Gentlemen,
Does anyone know where the 3' gauge US Potash got it's steel side dump hoppers?
My best guess is the Morenci Southern. The USP got a 2-8-0 from that line, and I've seen a thumbnail pic of some cars on the MS that had that same unusual funnel-shaped body.
But it would be nice to have confirmation, and perhaps discover where I could find more pics.
The link below is to a photo of these cars, posted on Boerries Burkhardt's White Pass site.
Cheers,
Michael