My husband  grew up in the Wrangell St Elias park.  We once hiked to the Erie Mine.  It was a very difficult hike but the view from the porch of the mine building was breathtaking. You could picture the miners finishing their work days by sitting on that porch overlooking the glacier.  That was in the '80s and the National Park service had not really done anything with preservation.  So we slept in the bunkhouse, looked at old relics, and marveled at the incredible feat it must have been to haul up a granite slab pool table for recreation.