Raised-Field Farming (1 of 2) (IMAGE) University of Utah Caption This aerial view of pre-Columbian agricultural raised fields is in the seasonally flooded savannas of French Guiana. Credit Stephen Rostain, 1987 Usage Restrictions May be used in relation to research content. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.