1997 Map of Thatcher

South of the valley floor, the terrain rises sharply into the Coronado National Forest and the Pinaleno Mountains. This transition from the developed lowlands to the elevated Frye Mesa is marked by a network of water management features, including the Cluff Reservoir No 1 and Riggs Reservoir, which capture runoff from mountain canyons like Frye Canyon and Deadman Canyon. The map preserves the spatial relationship between the historic community of Smithville and the expanding residential footprints of the era.