Welcome to United States Genealogical County Links
See also: 48 State map     See also: Entire U. S. map
* Goal: present U. S. genealogical links of counties geographically close without the limitation of state borders.
* For the best source of state & county links, see www.usgenweb.com
* Virginia Counties, Puerto Rico Municipios and Virgin Island Islands are not shown as the density of the letters of their names is too high.
* Some island territories of the U. S. currently have 0 population.
* Former territories of the U. S. include:
    ~1776-1842 Northern Maine, now Ontario, Canada
    ~1800-1846 Oregon Country above 49N, now British Columbia, Canada
    1803-1818 Louisiana Purchase north of 49N, now Alberta & Saskatchewan, Canada
    1803-1925 Minnesota: Treaty with Canada clarifies the boundary through the Lake of the Woods, resulting in the transfer of a few acres.
    1898-1902 Cuba
    1899-1946 Philippines
    1904-1999 Panama Canal Zone
    1939-1979 Canton, Enderbury, Washington, Fanning Islands, now Kiribati
    1947-1994 United Nations Trust Territory of the Pacific Islands, now Marshall Islands, Federated States of Micronesia & Palau
    Other U. S. - Canada boundary adjustments.
* Foreign territories under current or former U. S. jurisdiction are not listed here.
* These maps are equal area projections.
* Local map scale is 100 pixels/1 degree latitude. (About 60 miles/inch or 40 km/cm, depending on your monitor.)
* Both vertical and horizontal scales are the same.
* All local maps are the same scale.
* A corresponding name has not been found for this equal area-polar projection. My projection is formed by intersecting a plane with the Earth forming a circle with a radius of 2.5 degrees latitude. The circle is centered on the indicated latitude/longitude. The top of the circle is orientated North. The Earth is then projected on this plane in a non-linear fashion such that the great circle distance to the center is proportional to the plane's distance to its center. Please e-mail me if you know the name of this projection.
* Web page validated with W3C HTML Validation Service
* Map data from www.census.gov/geo/www/cob/cs2000.html & www.libraries.psu.edu/crsweb/maps/defaultold.html

Last updated: Dec 6 2002
This map and others brought to you by © 2002 Chuck Bluhm

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The views and opinions expressed in this page are strictly those of the page author.
The contents of this page have not been reviewed or approved by the University of Minnesota.