I'd say so, I can't remember seeing any mining that far down the canyon unless it was a prospect hole, or placer operation in the creek like that at Roscoe. That was one of the oddities that struck me early on, all the mining was concentrated above Blackhawk or above Idaho Springs, scant evidence between Golden and there. Dredging and placering was done around Golden though.
That Compressor shed would make a decent diorama of scene for the last years of operation of the C&S. I wonder if Harry Brunk had ever seen the picture or knew about it. He did have a "No Name Mine" based on a orebin from the Black Hills that stood in for any downstream mining.
UpSideDownC
in New Zealand