In the early 1980s, many of the staff at Lone Mountain Ranch in Big Sky Montana were like a close-knit family, both working and living together on the property. Not only did the Lone Mountain actually function as a working cattle ranch, it also offered luxury guest accommodations for tourists looking to get a taste of the Old West.On a hot July day in 1984, one of the staff members had decided to go out for a run along a well-used trail through the scenic beauty of the surrounding area and never returned.