When Is Mud Dangerous?
ES1204  Ground Cover
USDA Forest Service
Forested slope
BLM, National Office of Fire and Aviation
Burned area

These areas show similar slopes, yet one has recently experienced a forest fire. The fire removed trees, shrubs, and grass from the soil surface, leaving it littered with the remains of burned materials.

6. How might forest fires affect an area's potential for experiencing mudflows?

7. Hypothesize about how mudflows could change the topography of an area after a fire.

8. What human activities strip soil of its protective vegetation and increase its vulnerability to mudflows?

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