Hmmmm...
Well I'm not sure what qualifies as heavy dredging;
Breckenridge after June 1906 - but not much
Closeup of the cars in the yard
At least I think I see the block lettering.
I'd really be interested in the maps Rick. There was a lot going on at this gritty location - especially up French Gulch. I don't know if the RR actually owned trackage up the gulch but it seems something was there...