Guam CMSP Data Portal
For each dataset, you can
View a screenshot of the data
Examine its metadata for more detailed information
Download the data
For a limited number of datasets, you may also "dive in" and explore it via an interactive mapping interface.
Check out the interactive Guam "supermap", which contains almost all the layers below. You can also draw on, upload your own data, annotate it and print it!
Physical Geography Shoreline 
Coastal Features Shore type Interactive bathymetry and elevation profiler Elevation 10-meter resolution DEM 3-meter resolution DEM Bathymetry 60-meter resolution 5-meter resolution Slope 60-meter resolution 5-meter resolution Physiography Geology Soils General Detailed Benthic structure Hydrology Major rivers Rivers, streams and creeks Coastal springs Administrative Villages Population and population density Military Lands Protected Areas Marine Protected Areas (MPA) Marine Protected Areas (MPA) - fishing restrictions Marine Protected Areas (MPA) - by government level Territorial Seashore Park Ecological Reserve Areas National Wildlife Refuge National Parks Conservation Areas Aids to Navigation Airports Roads Indicator Species and Habitats Marine Mammals Amphibians Fish Coral Benthic Habitat 
Seafloor Roughness (Rugosity) 60-meter resolution 5-meter resolution Ocean and Atmosphere Shoreline Wave Exposure Wave Forecast 
Ocean Currents Forecast Ocean Temperature Forecast Salinity Forecast Wind Forecast Air Temperature Forecast Rainfall Forecast Precipitation Climatology Activities and Uses Anchorage Areas Wastewater facilities Tourism and Recreation Beach Use Military uses Fishing / Aquaculture Shipping Energy Culture - National Registry of Historic Places Land Cover Climate Change Sea Level Rise Ocean changes
