Results 4 results found Check dams crossing valley to control risk of flash flooding down steep hillside, Mirleft, Morocco, North Africa, Africa System of protection against invasion of desert sand in palm grove of Zagora, Draa River valley, Province of Zagora, Region Draa-Tafilalet, Morocco Overflooding lake Tanganjika, Kalemie, Tanganyika proince, Democratic Republic of Congo, Africa Plastic bags filled with sand as erosion control, Maldives, Indian Ocean, Asia Plastic bags filled with sand as erosion control, Maldives, Indian Ocean, Asia
