A
coal miner, Patrick Mahon, discovered Archbald Pothole in 1884. Mahon was extending a mine shaft. When he set off a blast of
explosives, water and stones came pouring into the mine shaft. He and the other miners fled the scene fearing for their lives. The manager of the mining company, Edward Jones, came to investigate. Jones ordered that the area be cleared of the fallen debris. Almost 1,000
tons of small rounded stones were removed and Jones soon realized that the vertical tunnel discovered by the coal miners was a large
pothole. After serving as a ventilation shaft for the mine, the pothole was fenced in by the owner of the land, Colonel Hackley, for tourists. The pothole soon became a renowned tourist attraction. Edward Jones led the tours for the locals and famous
geologists. Archbald Pothole was turned over to public ownership in 1914, when the
widow of Colonel Hackley deeded surrounding the pothole to the Lackawanna Historical Society.
Lackawanna County gained ownership of the pothole and the surrounding in 1940. Archbald Pothole was a county park until 1961 when the property was transferred to the
Commonwealth of Pennsylvania. Archbald Pothole State Park was formally opened in 1964. Despite the improvements, attendance remained low and litter thrown into the pothole was still a problem, including "bottles and paper bags... a parking meter, a park bench and a "Wet Floor" cone". Another problem was the park's "unsavory reputation" as a place for "men looking for sex", with plainclothes police arresting 29 men there for "lewd behavior" in one 2002 sweep. In an attempt to address these issues, in 2002 the Pennsylvania State Legislature approved more improvements to the park, including "least two soccer fields, a basketball court, a tennis court, a walking trail, a playground, roads and parking areas". ==Geology==