1. Movement of Large Amounts of Material Downhill under Gravity
Mass Movement
Movement of Large Amounts of Material Downhill under Gravity

2. Types of Mass Movement Slow vs. Fast Wet vs. Dry
Cohesive (together) vs. Fragmented (separate pieces)

3. Types of Mass Wasting Creep Landslide-most destructive Mudflow Slump
Avalanche
Rockfall

4. Factors in Mass Wasting
Climate
Moisture
Steep Slopes
Weak Rocks
Existing Failure Surfaces

5. Soil Creep

6. Soil Creep

7. Soil Creep

8. Soil Creep, California

9. Debris Flow, Utah

10. Landslide

11. Landslide Gros Ventre Slide, Wyoming, 1925

12. Mudflows

13. Slump- One large area falls (clump)

14. Bridge of the Gods, Washington

15. Bridge of the Gods, Washington

16. Slide Lake, Wyoming

17. Gros Ventre Slide, Wyoming

18. Landslide, Pakistan, January 4, 2010

19. Martian Landslide

20. Active Landslide on Mars

21. Active Landslide on Mars

22. Rockfalls, Yosemite, California

23. Rockfalls, Yosemite, California

24. Avalanche Chute, Colorado