Back in 1928, coal miner Almon Mathis was going about his daily business working two miles deep in shaft number 5 of the Heavener Coal Mine when he made a strange discovery.
Here is his account: “They pumped air down to us, it was so deep. After blasting the miners came across what appeared to be some concrete blocks. These blocks were 12-inch cubes and were so smooth and polished on the outside that all six sides could serve as mirrors. Yet they were full of gravel, because I chipped one of them with my pick, and it was plain concrete inside.
As I started to timber the room up, Mathis continued, it caved in; and I barely escaped. When I came back after the cave-in, a solid wall of these polished blocks was left exposed. About 100 to
Shortly after the incident, the miners were moved to the Wilburton mine and told to never speak of this again. They spoke to other miners there who had also claimed to have found similar blocks, though shaped like a barrel and with strange prints on them.
The coal in the mine was carboniferous which, according to standard dating methods, would make the wall at least 286 million years old.
The Heavener region of Oklahama has yet another mystery. The recently closed Heavener Runestone State Park has a strange stone carving believed to be of Viking decent and could possibly date back to 1,300AD. Another less popular theory claims that it was created by French explorer René-Robert Cavelier, Sieur de La Salle’s expedition in the 17th century. It was discovered in the early 1900’s and was originally thought to have been carved by the local Choctaw native tribe.