Mines
May 14, 2020
➤ Mines are areas excavated for extracting coal or other valuable minerals such as gold or diamonds.
Just like natural caves, abandoned mines are perfect hiding places for riches, valuable artifacts or for thieves' and stagecoach robbers' prey.
June 09, 2026
Medieval Underground Cellar from the 12th Century Discovered with OKM Rover C4
Discover a hidden 12th-century medieval cellar complex located with the OKM Rover C4 and verified through LiDAR and infrared imaging.
June 01, 2022
Knights Templar Treasure Hunt: Archaeological Expedition to Poland
OKM followed an expedition to Poland searching the underground near and in the church for graves of the Knights Templar. ...
February 27, 2013
French Archaeologist Discovers Secret Door of Machu Picchu with OKM Rover C II
Archaeologist discovers a new underground chamber in the Inca city of Machu Picchu in Peru with OKM Rover C II. ...