 | This 266-acre property in Arizona isn't much to see from above ground: cacti, dirt and a 2-bedroom manufactured home, two hours from anywhere. The reason for the property’s $5.9 million price tag is hidden underground: miles of tunnels into what was once one of the richest sources of gold in the U.S. The first people to discover the mine reported that the area was littered with gold nuggets the size of potatoes. |  The Octave Mine is credited with having produced 202,500 ounces of lode gold. |
 | In its heyday in the late 1800s, Octave was a bustling town with a school, a post office, a general store and a stagecoach line. The mines there were some of the most productive in the Old West before the area was abandoned by Asarco in 1940s. |  |
 | A series of underground shafts was sunk to extract the gold from a vein averaging a width of 2.5 feet.
The 1,100-foot deep Joker shaft contributed to the Octave Mine’s extensive workings, including several thousand feet of drifts. The mine was featured in a short-lived cable show called “Ghost Mine,” where paranormal experts explored reports of ghosts in abandoned mines, including the spooky and notorious “Blue Devil of Octave.” |  |
 The headframe and associated mine buildings were still standing in this 1950s photo | The Octave mining property includes 266 acres of patented claims. It's advertised with 25 miles of tunnels and a 3-mile-long main gold vein with offshoots. |  Mill, cyanide plant and town in the early 1900s |
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