Consult this comprehensive guide for Topographic Maps including US Geological Survey maps, library resources, and other resources.
Penn State has a near complete collection of nautical charts.
Use our guide on Aerial photographs.
Taken from satellites; resemble high-altitude aerial photographs
Keyword(s): remote sensing, satellite meteorology
In the same way that topographic maps represent the three-dimensional features (or relief) of overland terrain, bathymetric maps illustrate the land that lies underwater. Mostly coastal areas and very large lakes. Few rivers are mapped.