Southern Guam geospatial information serverPerched springs (locations of springs above sea level)About this map:This map shows the locations of springs that issue from rocks above sea level in southern Guam. The geospatial data were extracted from the recently updated National Hydrography Database (NHD) by the United States Geological Survey (USGS) in collaboration with Bureau of Statistics and Plans (BSP) and the Water and Environmental Research Institute of the Western Pacific (WERI). The original NHD data can also be viewed and downloaded using the NHD Viewer. |