CANDY MOULTON. The Grand Encampment: Settling the High Country. High Plains Press. 240 pages; trade paperback, $19.95,

Here is the story of the copper mining era when rich minerals were found daily and men made or lost fortunes overnight. Some made money and left with it, some stayed too long, and some had the fortitude to survive to watch their grandchildren grow up in the community. But the story is more than the mining days. Early explorers, cattlemen, tie hacks, the sixteen-mile tramway, the four-mile woodstave pipeline, the booms and busts are all here.