Sand dunes form wherever environmental conditions provide sand, steady wind and a location
for the sand to collect. This may occur in both coastal and terrestrial settings.
Terrestrial - Land-Locked Dunes
Sand starts as bedrock, which is broken down into blocks, a size at which water is able to
transport them downstream. Eventually these large blocks may be jostled around enough to be
broken into sand-sized grains. Sand and other sediment usually ends up deposited along the
sides of streams, in lakes, or in the ocean, but what happens when it doesn't? An ephemeral,
or seasonal stream, during its dry periods, is exposed to wind. Occassionally a lake will
dry up, with its sediment left without the protection of water. These two sources feed
land-locked dune fields.
Sand Dune Formation
Processes involving sand and dust transport play an important roll in shaping the landscape and the ...
Sand Dune Photos
Remote sand dunes in Eureka Valley, Death Valley National Park
Saline Valley Dunes
Remote sand dunes in Saline Valley, Death Valley National Park
Sand dunes area north of Baker near Shoshone
Sand dunes near Stovepipe Wells in Death Valley
Sand dunes in Mojave National Preserve near Kelso, Ca.
Sand dunes at southern end of Owens dry lake in Owens Valley
... is a 1.5 square mile complex star sand dune that reaches 2,731 feet above sea level.
Minor sand dune field near Means dry lake next to Twentynine Palms Marine Corp Base in Johnson Valley
Remote dunes in southern Death Valley National Park