Salt workers brave a barren landscape in Carlsbad, N.M., to bring this important mineral to the American public; with a cold front sweeping the northern states, and icy roads in need of salt, they're racing to send off as much product as possible.
Salt workers brave a barren landscape in Carlsbad, N.M., to bring this important mineral to the American public; with a cold front sweeping the northern states, and icy roads in need of salt, they're racing to send off as much product as possible.