My wife and I have made a valiant effort to concur the lower TH for HC, but to our disappointment we can not and have given up.
In April of 06 she and I set out following a trip log from this site. It was a bit vague

yet we were confident. It starts out okay until you get to the old corral. We should have stopped and turned back but didn't. We followed and uneven un marked trail for some time in search of Tony's Cabin as our finish line, but never reached it. We got lost and ran out of water and a not so friendly rattler

let us know to turn around. The mine has taken over this lower portion of the TH

We did not know this at the time of our hike.
We plan to return and try from the upper TH #203.