Great Sand Dunes System
NPS/Great Sand Dunes NPP
The large dunefield is actually just one of four primary components of the Great Sand Dunes geological system. The mountain watershed, dunefield, sand sheet, and sabkha are each important aspects of this complex sand system.
Did You Know?
Alpine lakes such as Upper Sand Creek Lake are part of the mountain watershed of Great Sand Dunes, and provide a dramatic contrast to the stark dunefield. More...