Even though we do not stake hazardous mines, we know some of our readers do in fact have claims with old workings on them, in some cases even claims we have sold. Not all old workings are hazardous and some can even prove to still be lucrative. Many of the workings you will find out in the Arizona desert today were put there a hundred years ago or more. At that time gold was priced at $16 an ounce. In 1942 the government closed all gold mines under their War Production Board'