Big Mine Run Geyser is the only geyser on the East Coast of the United States. In Ashland, Pennsylvania, just outside the ghost town of Centralia, you can find water being expelled from the earth with immense pressure. When the mines in the area were abandoned in the 1930s, the empty mine shafts filled with water. When the water had nowhere else to go, it found an escape through an old ventilation hole. The geyser experiences different pressure depending on rainfall, and can be as short as three feet or…