>>876339Timbers were soggy and showed signs of decay, but still rather dense. I tested it by stabbing a non-load bearing beam a ways in and the blade only made it a quarter inch to a centimeter in. The pipes ran along the floor parallel to the rails, with a type of valve every 30 yards or so. They were 3-4" in diameter, and rusted completely through.
>>876342The water was chilly but not freezing. It was somewhat clear further in, but it mixed with iron oxide and other contaminants and became a distinct orange color. This mine is in the Bradshaw Mountains in north-central AZ
