About this map:

This map shows the locations of weather data stations (including rain gages) in northern Guam. The geospatial data were obtained from the National Water Information System (NWIS) database operated by the United States Geological Survey (USGS). The database is available online at (http://maps.waterdata.usgs.gov/mapper/index.html?state=gu). Coordinate information obtained was converted to a GIS shapefile.