Southern Guam geospatial information server
About this map:
This map shows the extent of major streams and rivers in southern Guam. The streams and rivers shown are a subset of data derived 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 dataset was extracted from the NHD Flowline dataset and modified so that intermittent streams and smaller permanently flowing streams were removed to simplify the map. The original NHD data can also be viewed and downloaded using the NHD Viewer.