yes-I've seen them-post 446 e.g. but not living anywhere near the area I had trouble conceptualizing where they were in Arizona without a larger regional map. Good they are in NW Arizona and not the Tucson area where that other mine you mentioned is having trouble in a residential area-which is the largest USA pop area to be in such a hot climate with 107 degree average in August?and where rivers have dried up and where its so hot I've heard people say they cant even go outside in summer.  And the chloride mine is higher elevation, as is Kingman at ca 3300 ft -which helps- 5.4 degrees cooler for every thousand feet elevation. Thanks for all your hard work on this- I can tell u work hard at it-something required til these things take off.