Actually that is the Donna Juanita mine and I will be including it in my next part in the Mills of Idaho Springs over on the
C&Sn3 Discussion Forum Just waiting on some new info for that segment at the moment.
The Maude Monroe was a level drift (tunnel) opposite the Donna, Harry Brunk in later issues of the Gazette came to the (correct)conclusion that the Orange Headframe was of later years and that Headframe was also from after the C&S abandonment.
There never really was a Hukill mine per se just a vein in part of the Stanley Consolidated Mines there.