The focus of Map Collections is Americana and Cartographic Treasures of the Library of Congress. The images were created from maps and atlases and, in general, are restricted to items that are not covered by copyright protection.

David Rumsey Collection

18th and 19th century North and South American maps, nautical charts, atlases, globes, and school geographies.

NOAA's Historical Map and Chart Project

An extensive collection of historical maps and nautical and aeronautical charts.

Perry-Castaneda Library Map Collection

Over 5,000 online map images from the University of Texas's Perry-Castaneda Library Map Collection. Many of these images are of CIA maps, but there are a number of historical maps available with an emphasis on Texas.

Hargrett Library Rare Map Collection

The Hargrett Rare Book and Manuscript Library at the University of Georgia maintains a collection of more than 800 historic maps spanning nearly 500 years, from the sixteenth century through the early twentieth century.

2002 Agricultural Atlas of the United States

National Agricultural Statistics Service, Census Division's Atlas provides many maps based on the 2002 Agricultural Census data. Topics include: number of farms, value of land and buildings, farm size, farms by value of sales, tenure and characteristics of farm operators, principal occupation of operator, and farms by type of organization.

Branner Earth Sciences and Map Library Guide to Online Maps

Links to many more online map sites.

Interactive Maps

Neighborhood Knowledge California: Neighborhood Knowledge California allows you create and save maps of all or part of California showing demographics and housing, economic, and health indicators.
California Digital Atlas: This interactive map allows you to create and print maps of California showing a wide variety of information from environmental hazards to land ownership to demographics.
American Factfinder Thematic Maps: The Thematic Maps interface allows you to create and save maps showing demographic and housing characteristics from the decennial census and the American Community Survey as well as business and government information collected by the U.S. Census Bureau.
Historical Census Browser from University of Virginia Library: This interactive site allows you to retrieve historic decennial census data from 1790 to 1960. You can retrieve the data in tabular form or create simple maps that may be printed or saved.
GeoCommunicator: Bureau of Land Management's National Integrated Land System (NILS) transaction applications (Survey Management, Measurement Management, and Parcel Management). GeoCommunicator provides searching, accessing and dynamic mapping of data for federal land stewardship, land and mineral use records from BLM's LR2000, and land survey information.
EPA's Window to My Environment: An interactive map that shows the location of regulated facilities, monitoring sites, water bodies, flood hazards, population density, perspective topographic views and so much more with hotlinks to state/federal information about these items of interest.
USGS Natural Hazards Support System (NHSS): The NHSS's interactive viewer maps current/recent earthquakes, wild fires, hurricanes, volcanoes, and weather warnings.
FEMA's Mapping Information Platform: This interactive map allows you to create, view, and save maps of flood hazard areas in the United States.
USDA National Agricultural Statistics Interactive Statistical Map (SVG): This interactive mapping program allows you to create simple maps illustrating the various US agricultural statistics for part or all of the US by state or county.

GIS Data

California Spatial Information Library (CaSIL) (http://casil.ucdavis.edu/pages/data.html): This state government site allows you to download free frequently used datasets for California, including vector data, DRGs, DOQQS, and other image data.
California Environmental Information Catalog: An online directory for reporting and discovery of information resources for California. Participants include cities, counties, utilities, state and federal agencies, private businesses, and academic institutions that have spatial and other types of data resources.
City of Davis - Mapping & Geographic Information Systems: Online maps and downloadable digital layers for the City of Davis.
Geodata.gov - U.S. Maps & Data: U.S. E-Gov initiative to provide access to geospatial data and information.
US Census Bureau's Cartographic Boundary Files: Download boundary files that are selected generalized extracts from the Census Bureau's TIGER geographic database and are designed for use in a Geographic Information System (GIS) or similar mapping system.
USDA's Geospatial Data Gateway: Easy access and free download of natural resources data that has been collected by the USDA. Covers the U.S.
ESRI's Downloadable Data site: This commercial site has both free and for-fee downloadable files.
GeoCommunity: The GIS DataDepot has numerous data holdings that are available for free download, additional data can be downloaded via a "Premium" option or written to CD-ROM for a fee.
The National Atlas of the United States: Downloadable map layers from the United States Geological Survey (USGS). Most of the map layers were compiled at a scale of 1:2,000,000 and cover the full geographic extent of the United States of America, although some cover the conterminous United States only. Some map layers include Puerto Rico and the U.S. Virgin Islands.
NGA Raster Roam: Public access to view and download imagery, maps, digital elevation data and other geographic information. Includes VMAP0 and VMAP1 public data.
National Spatial Data Infrastructure (NSDI), Geospatial Data Clearinghouse: The Clearinghouse functions as a detailed catalog service with support for links to spatial data and browse graphics. Participation in the Clearinghouse includes federal, state, university, and vendor participants in the United States and abroad.
University of Maryland, Global Land Cover Facility: Satellite and satellite derived imagery and data.
USGS Digital Geospatial Data: Links to information on DEMs, DLGs, and land use/land cover data from the USGS.
Websites for Digital GIS Data: Stanford University's Branner Library site that provides many useful links to GIS Data resources.

Gazetteers

Columbia Gazetteer Online (UC only): A database of names, descriptions, and characteristics of over 165,000 places in the world.
GNIS Online Data Base: Contains almost 2,000,000 geographic features in the United States: from populated places, schools, reservoirs, and parks to streams, valleys, springs, and ridges.
GEOnet Names Server: The National Geospatial-Intelligence Agency's database of foreign place names approved by the U.S. Board on Geographic Names (excludes United States of America and Antarctica).
Getty Thesaurus of Geographic Names: Getty Information Institute's database of approximately 1,000,000 names representing 900,000 places containing continents and nations of the modern political world as well as historical places, including physical features and administrative entities such as cities and nations, with an emphasis on places that are important for art and architecture.
U.S. Gazetteer (U.S. Census Bureau): This gazetteer is used to identify places to view with the Tiger Map Server and obtain census data from the 1990 Census Lookup server. You can search for places, counties or MCDs by entering the name and state abbreviation (optional), or 5-digit zip code.
ZIP Code Lookup and Address Information (U.S. Postal Service): Locate a specific ZIP Code number, all ZIP Code numbers in a city or all cities in a ZIP Code.
Canada's Official Geographical Names Web Site: Current, formerly official, and undersea names in Canada as determined by the Geographical Names Board of Canada. This site is in English and French.
Index of German-Polish and Polish-German names of the localities in Poland & Russia: Index contains Polish and previous German names of localities situated in Poland and Russia.
The JewishGen ShtetlSeeker: A database listing Jewish communities destroyed during the Holocaust. Clicking on name brings up on-screen map from MapQuest's Interactive Atlas.
Place Names on the Internet: Arizona State University's links to online gazetteers.
Google Directory to Online Gazetteers: A listing of popular online gazetteers.
Oddens's Bookmarks links to online gazetteers

Miscellaneous Cartographic and Geographic Resources

USGS Geography: USGS's site linking to their mapping programs and digital products.
USGS Maps and Other Products: USGS's site providing information on print and digital maps, aerial photographs, and related products.
Library of Congress, Geography and Map Reading Room, Reference Web Resources: Links to a wide variety of Map and Geography Resources.
Oddens's Bookmarks: Links to more than 6,700 sites of cartographic interest compiled by Roelof P. Oddens.
California Geographical Survey: A free online map resource for educators.
Earth Sciences and Map Library, UC Berkeley: Internet Resources in Maps and Cartography: Contains clickable listings for many map and GIS sites.
UCLA Library's Maps & GIS Links: Links to many more online maps, GIS data, gazetteers, etc.
Maps and References: Many links from University of Iowa Center for Global & Regional Environmental Research.
Infomine: Database of online Map and GIS resources.
Map History/History of Cartography Gateway: The WWW-Virtual Library's map history site offers a non-commercial mixture of comment and tips and many thousands of links to free sites.
Map Projection Overview: Explains and illustrates numerous map projections and their uses.
Great Circle Distance Calculator: Computes the flight distance between any two points on the earth (great circle distance). Can input latitude, longitude, or use airport codes. Result returned in statute miles, nautical miles, or kilometers, and are shown on an outline map or topographic map.
Atlas and Map Valuation and Conservation: A list of Web sites to use when valuing an atlas or map. Includes a link to the AIC for conservation services.

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