A long-abandoned mine near Patagonia - first worked by Spanish miners in 1853 - is being sealed with watertight plugs to eliminate acid drainage.

50 Photos That Bring the 1850s to Life. Story by Colby Droscher • 1mo. 1 / 51. ad. ad. 50 Photos That Bring the 1850s to Life. The 1850s were a time of dramatic change, innovation, and expansion.