Grand Canyon's mine inventory: 38 sites, 75 features, by the numbers
NPS has counted 75 abandoned mine features across 38 sites in the park, part of a 37,050-feature nationwide problem. Here’s the public accounting.
Abandoned Mineral Lands
NPS has counted 75 abandoned mine features across 38 sites in the park, part of a 37,050-feature nationwide problem. Here’s the public accounting.