Figure 2. NS001 airborne scanner (Landsat Thematic Mapper simulator) visible image of the primary Kelso Dune sand transport pathway from the Mojave River Wash. The data, acquired concurrently with the Thermal Infrared Multispectral Scanner (TIMS) imagery in 1995, shows the Kelso Dunes, Devils Playground, and surrounding mountain ranges. The white dashed region denotes the area analyzed in detail using the TIMS (see Figures 3-4). The only current actively saltating sand occurs along the three main linear ridges of the Kelso Dunes and the small crescentic dunes in the western Devils Playground (south of Soda Lake playa). The prevailing east-southeast wind direction is opposed by topographically-controlled westerly winds that keep the main core of the Kelso Dunes stationary, overlapping the alluvial fans of the Granite and Providence Mountains [Ramsey, et al., 1999].