ESCI/BIOL - Oceanography & Marine Science: Maps & Images

National Oceanic & Atmospheric Administration's enormous historical collection

Create and download charts based on your own scale, extent, and paper size settings, access real time coastal observations and more

Covers the land and waters of the United States of America, including territories and possessions (past and present). The images are free to download, and may be used for commercial or educational purposes.

Series and topographical maps available as well as extensive, searchable field notes from 1879!

USGS' Earth Resources Observation & Science (EROS) includes tens of millions of satellite images

Joint NASA/ USGS Landsat series of Earth Observation satellite images continuous since 1972