Beautiful photo, Jeff, thanks for posting it.
Just when you think that there aren't anymore undiscovered C&S images out there, something like this turns up.
And then, inspired by your find, I did some Pinterest mining today and found this:
Who knew that the conveyor to the great gravel pile at the Gold Pan pit originally had an enclosed structure near the tracks . . .
The C&S mainline, coming down from Boreas, ran just this side of the bents supporting the conveyor house.
Jim Courtney
Poulsbo, WA