Everything comes from the ground, somewhere. When the resource is below grade, and is removed, a depression forms. Digging the earth, pulling out material, is extraction. It includes mining, quarrying, overburden removal, and the various landforms and phenomena these activities generate.

FIELD TRIPPING IN THE PITS: CLUI LEADS OHIO STATE INTO AGGREGATE

MARGINS IN OUR MIDST: A JOURNEY INTO IRWINDALE

DIGGING VERMONT: WHAT LIES BENEATH THE GREEN MOUNTAIN STATE

BLACK MESA COAL

URANIUM MINING

INDEPENDENT INTERPRETER BILL DUBOIS

LANDSCAPE OF COPPER