1. Arid Landscapes

2. Arid and Humid Weathering Compared Humid ClimatesArid Climates RainfallFrequentRare, May Be Seasonal, Often Violent Soil CoverThickThin or Absent VegetationThickSparse-no Continuous Cover Chemical Weathering IntenseWeak Overall Landscape Evolution Mostly Uniform Processes Episodic Processes

3. Arid Erosion Cycle: Youth V-shaped Valleys Divides Flat, Undissected Much Like Youth in Humid Climates

4. Youthful Landscape, Arizona

5. Arid Erosion Cycle: Maturity Slopes Stay Steep, Retreat Alluvial Fans Playa Lakes Pediments

6. Alluvial Fans, Utah

7. Mature Arid Landscape

8. How Pediments Form

9. Arid Erosion Cycle: Old Age Inselbergs Playa Lakes Pediplain

10. Old Arid Landscape

11. Monument Valley, Arizona

12. Playa Lake, California

13. Great Salt Lake, Utah

14. Closed Basins are Typical of Arid Regions