Cross-section of foggara (IMAGE)

Geological Society of America

Cross-section of foggara

Caption

Cross-section showing how a foggara or qanat works. An upward sloping tunnel is built into a hillside with vertical shafts until groundwater is reached. The groundwater then flows down the tunnel. Figure courtesy of Frank Schwartz.

Credit

Frank Schwartz

Usage Restrictions

Credit must be given to the creator. Only noncommercial uses of the work are permitted.

License

CC BY-NC

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