^ c. 1939, near Clarksdale MS, by Marion Post Wolcott

Online sources of information referenced on US Ends .com
Information on this website has been compiled from countless sources over the course of many years, since 1998.  Numerous people have contributed information, and I also own a small collection of printed maps and atlases dating back to 1928.  But in recent years the quantity of historic maps (and other highway-related information) that has been scanned and put online has greatly increased, much to the benefit of those who enjoy studying the US route system.  I rely heavily on these online sources to provide documentation for the information presented on this website, and this page is an attempt to keep those sources organized and up-to-date.  You can help: it seems that DOT websites get reorganized somewhat frequently, which can cause links to become non-functional.  If you notice any of the links below are dead -- or if you know of another online map source that would be appropriate on this list -- please contact US Ends .com

National-level information
Historic maps, official and commercial
United States road atlases / maps / map series
State-level information
Historic official maps from state departments of transportation
Alabama
University of Alabama collection:
Alaska (no known online sources)
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
Florida
Georgia
  • DOT map collection (go to "Archive Maps" section)
  • County maps hosted by GNAHRGIS (under Layers choose "Historic GDOT County Maps")
Hawaii (no known online sources)
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
  • DOT collection of historic official highway maps and county maps
  • 1950 county maps (University of Kentucky collection)
  • 1930 official highway map
Louisiana
Maine (no known online sources)
Maryland
Massachusetts (no known online sources)
Michigan
  • DOT county and official highway maps in Michiganology collection (search for "highway map")
Minnesota
  • DOT official map collection at Minnesota Reflections
Mississippi
  • DOT collection (go to State Highway Archive section)
Missouri
Montana
Nebraska
Nevada
New Hampshire (no known online sources)
New Jersey
New Mexico
  • DOT historic map collection (on the left choose State Agencies> NMDOT> Historic Maps)
New York (no known online sources)
North Carolina
DOT state transportation map collection
DOT historical county map collection
DOT maps in University of North Carolina collection
North Dakota (no known online sources)
Ohio
Oklahoma
Oregon
Pennsylvania
Rhode Island (no known online sources)
South Carolina
  • DOT state highway map collection at University of South Carolina
  • DOT historic county map collection at University of South Carolina
South Dakota
  • DOT historic map collection (not easy to find, as some are tagged "highway", others are "road maps", and still others have neither of those tags.  But there are about 20 maps altogether.)
Tennessee
Texas
  • DOT state and county maps in Portal to Texas History
  • Commercial maps, DOT state and county maps in Texas State Archives (check "Image" and search for "highway")
  • DOT highway designation files and minute orders search page
Utah 
  • DOT official highway map collection in State Archives
Vermont (no known online sources)
Virginia
Washington
West Virginia (no known online sources)
Wisconsin
DOT official state highway map collection (search "highway commission")
Wyoming
DOT official state highway map collection (or search for "highway")
Research and/or photo credits: Nathan Edgars; Dale Sanderson; multiple contributors to the AARoads Forum thread
Page originally created 2010;
last updated Apr. 18, 2021.