Guelta
Wikipedia explains the meaning of Guelta, A Guelta is a peculiar type of wetland, typical of desert regions. They are formed when underground water in lowland depressions spills to the surface and creates permanent pools and reservoirs. Other gueltas may be formed by rainwater being collected in clay-lined depressions. These types are not permanent and evaporate quickly.
© Kieron Nelson 1999 "Vanishing Cultures Photography" All rights reserved
