Maps and GIS

Our Library's Collection:

• List of Wall Maps
  
• Map and Atlas Collection Overview

Digital Sanborn Maps, 1867-1970 (Washington, DC and Maryland)

Sanborn maps are large-scale plans of a city or town, drawn at a scale of 50 feet to an inch. There were created to assist fire insurance companies as they assessed the risk associated with insuring a particular property. The maps list street blocks and building numbers including numbers in use at the time the map was made and previous numbers.

ArcGIS:

• ArcGIS Site License Program Fact Sheet
• Registration Form
• ArcGIS Data
• Baltimore Data & Maps (coming soon)
• ArcGIS Training Via the Web

GPS

• GPS Kits
• Downloading GPS Waypoints

USGS Resources:

• USGS Homepage
• Geologic Hazards
• National Atlas of the US
• National Geologic Map Database

Gazetteers:

• GEOnet Names Server (foreign place names)
• Geographic Names Information System (US place names)

Census Mapping Tools:
     (Tools to assist when using census geographies) 

• Census Bureau Maps and Cartographic Products
  • Includes PDF maps based on census geography for 2000 and 1990
    Tip:
    Follow the link for Map Products; at the small geographies there may be several maps for an area - the index map for an area is always labeled 000.dbf
  • Boudary files generalized, digital files suitable for use with a Geographic Information System(G.I.S) as a base for medium to small-scale thematic mapping.
  • Online mapping through American Factifinder and Tiger Mapping Service
• Street addresses for census 2000
• MABLE/GEOCORR Geographic Correspondence Engine. Build tables that relate different kinds of geography to each other. Example: What zip codes fall within a particular MSA/CMSA?... MABLE=Master Area Block Level Equivalency.
• National Historical Geographic Information System (NHGIS) Aggregated data down to the census tract level.

Other Online Maps and Atlases:

• Aerial Maps and Photographs from Microsoft terraserver
• David Rumsey Map Collection
• National Geospatial-Intelligence Agency
• Map Machine from the National Geographic Society
• Maps via Perry-Castaneda Library -University of Texas At Austin Includes CIA maps of areas around the world.
• Historical Map and Chart Collection
• Web Soil Survey
• Maps in JScholarship
• Historic Map Collections of the Sheridan Libraries
• Historical Maps of Maryland
• Atlas of Historical County Boundaries

Places to buy Maps

• Omni Resources Wide range of Atlases and maps available. A good source for wall maps
• Map Link Good for Travel maps of Europe and Latin America
• National Geographic Maps and Geography Atlases Purchase maps found in the National Geographic Magazine
• East View Strong on maps for Russia, Asia and former Soviet Union countries
• Rand McNally
• Maryland Geological Survey