The Bonanza Mine is in the Hillsboro Mining District.  It was first mined in 1877.  Posting and photographs, unless otherwise attributed, by Bob Barnes of Hillsboro.


The entrance to the Bonanza mine, photo left, is located at:

32°56’43.76”N 107°33’31.01”W.


This post was amended on 8/7/16, see bottom.