During the Great Depression, the Emergency Conversation Work Act created the Civilian Conservation Corps (CCC), and produced lasting landscape and construction projects across the U.S. Through the program, millions of young men obtained meaningful . . . — — Map (db m234650) HM
Worked in the 1860's. Had vast deposits of bat guano, which by natural decay became saltpetre, chief ingredient of gunpowder used in the Civil War. As mixed with small parts of charcoal and sulphur, saltpetre from here powered Confederate cannon and . . . — — Map (db m189346) HM
Named for silver mine opened near pass by Spaniards in 1700s or earlier. Ore was inferior, and mine was abandoned; but 14 shafts (some interconnecting) remain. Near the mine are remnants of a fortification made by 30 men under the leadership of . . . — — Map (db m189345) HM