1981 Map of National Tank

About this map

Hualapai Indian Reservation lands dominate this high-plateau landscape, where drainage patterns and water collection points dictate the geography of the high desert. The map illustrates a complex network of dry washes, most notably Sandstone Wash and Albers Wash, which carve through the terrain toward the deep incisions of National Canyon. Human presence is marked by essential water-management features like National Tank, Sink Tank, and Potters Hole, which were vital for supporting life and livestock in this arid environment. The inclusion of the Hualapai Indian Reservation Boundary and several Borrow Pits provides insight into land use and infrastructure development during the early 1980s, reflecting a period of precise photogrammetric mapping by the Geological Survey.