1. Arid region geomorphology What causes the erosion and deposition? - Wind, Water, and Gravity Arid region geomorphology What causes the erosion and deposition? - Wind, Water, and Gravity

2. Badlands topography with terraces

3. Types of streams in Arid and semi-Arid locales Exotic streams - begin in areas that are not arid and flow into the desert. Ex. Nile River, Colorado River, Okavango River Local streams (Arroyos) - begin in the arid region, and often end there as well. There are many streams of this type… Types of streams in Arid and semi-Arid locales Exotic streams - begin in areas that are not arid and flow into the desert. Ex. Nile River, Colorado River, Okavango River Local streams (Arroyos) - begin in the arid region, and often end there as well. There are many streams of this type…

5. Nile River- An exotic stream Nile River- An exotic stream

6. Colorado River- Dammed

7. Alluvial fans in Death Valley Graben

8. Playa lake, Owens Valley, CA

11. Sand Dunes in Colorado Great Sand Dunes National Monument

12. Star Dune in Mexico

14. Linear Dunes With an exotic stream

16. Transverse dunes in Namibia

24. Erosional landforms vs. Depositional landforms Erosional forms include Pediment - bedrock ramp that leads up to the mountain front Plateau- large flat undeformed area that is topographically higher than the surrounding region Mesa- Smaller than the plateau, but basically the same feature Buttes- smaller than the Mesa, but basically the same feature Spires (a.k.a. Hoodoos)- smaller than the buttes

25. Piedmont in Colorado

26. Colorado Plateau with Grand Canyon

27. A Mesa

28. Buttes and Spires in Monument valley, Utah

31. Yardang

33. Desert Pavement and Desert Varnish

34. Ventifact

35. ventifacts

36. Walking Boulders