Gold mining in Colorado - Wikipedia
Gold mining in Colorado, a state of the United States, has been an industry since 1858. It also played a key role in the establishment of the state of Colorado. Explorer Zebulon Pike heard a report of gold in South Park, present-day Park County, Colorado in 1807.Maps | Colorado Geological Survey,Maps Colorado’s mining activity can be tracked through the Colorado Division of Reclamation Mining and Safety . They maintain the DRMS Mapping Application showing, among other things,active andAbandoned Mine Lands | Colorado Geological Survey,However, prior to those laws, when mining was completed, the companies just walked away leaving piles of waste and dug out holes. Thus, Colorado was left with an estimated 23,000 abandoned mine lands (AML). Abandoned mines present very dangerous physical hazards to the public.