Indexed collections of geographic names.
Geographic Names Information System (GNIS) [ More info] The Geographic Names Information System (GNIS) contains information about almost 2 million physical and cultural geographic features in the United States.
How to Use the Marine Realms Information Bank (MRIB) Digital Libraries [ More info] A step-by-step guide to conducting topical, geographic, and keyword searches of MRIB; viewing and refining search results; and exporting the results in several formats.
Hydrologic unit maps [ More info] Overview of hydrologic unit maps adapted from USGS Water-Supply Paper 2294 giving description of hydrologic units, link to list of hydrologic units, paper maps and digital spatial data sets.
The Marine Realms Information Bank family of digital libraries: Access to free online information for coastal and marine science [ More info] An introduction to three related USGS digital libraries: the general-purpose Marine Realms Information Bank (MRIB); the regionally focused Monterey Bay Science (MBS) Digital Library; and the topically focused Coastal Change Hazards (CCH) Digital Library.
Alphabetical Index of Topics
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