Auto trails were usually marked and sometimes maintained by organizations of private individuals. Some, such as the Lincoln Highway Association, were well-known and well-organized, while others were the work of fly-by-night promoters. It has been said[who?] that anyone with enough paint and the will to do so could set up a trail; trails were not usually linked to road improvements, though counties and states often prioritized road improvements because they were on trails.
In the mid-to-late 1920s, the auto trails were essentially replaced in the United States with the system of numbered U.S. Highways. Similar numbering schemes had begun to be implemented in the Canadian provinces as well.
| Name |
North or east end |
South or west end |
U.S. Highways (approximate, based on 1926 plan and later additions) |
Notes |
| Albert Pike Highway |
Hot Springs, AR |
Colorado Springs, CO |
US 270, US 64, US 183, US 154, US 50, US 85 |
| Arrowhead Trail |
Salt Lake City, UT |
Los Angeles, CA |
US 91 |
| Atlantic Highway |
Calais, ME |
Miami, FL |
US 1, US 25, US 17, US 1 |
| Atlantic-Pacific Highway |
New York, NY |
Los Angeles, CA |
US 1, US 211, US 15, US 33, US 60, US 52, US 460, US 50, US 54, US 70, US 60 |
| Atlantic Yellowstone Pacific Highway |
Chicago, IL |
Sioux Falls, SD |
US 20, US 218, US 18 |
| Bankhead Highway |
Washington, DC |
San Diego, CA |
US 1, US 15, US 70, US 170, US 29, US 78, US 70, US 67, US 80 |
| Bee Line Highway |
|
|
|
| Ben Hur Highway |
St. Louis, MO |
Fort Dodge, IA |
|
| Black and Yellow Trail |
Chicago, IL |
Yellowstone National Park |
US 41, US 16, US 14, US 16, US 20 |
| Blackhawk Highway |
Dixon, IL |
Beloit, WI |
|
| California-Banff Bee Line |
|
|
|
| Capital Route |
Omaha, NE |
Austin, TX |
|
| Chicago, Kansas City and Gulf Highway |
Chicago, IL |
Galveston, TX |
|
| Colorado to Gulf Highway |
Denver, CO |
Galveston, TX and Brownsville, TX |
US 85, US 385, US 370, US 81, US 181 |
| Columbia River Highway |
Pendleton, OR |
Portland, OR |
US 30 |
| Cooley Highway |
|
|
|
| Cornhusker Highway |
Sioux City, IA |
Oklahoma City, OK |
|
| Custer Battlefield Highway |
Omaha, NE |
Glacier National Park |
US 75, US 16, US 116, US 87E, US 87 |
| Dallas-Canadian-Denver Highway |
Boulder, CO |
Galveston, TX |
US 85, US 50, US 83, US 70, US 77 |
| Detroit-Lincoln-Denver Highway |
Detroit, MI |
Denver, CO |
US 12, US 32, US 38 |
| Dixie Highway |
Chicago, IL and Sault Ste. Marie, MI |
Miami, FL |
|
| Dixie Bee Line |
Chicago, IL |
Nashville, TN |
US 41, US 241 |
| Dixie Overland Highway |
Savannah, GA |
San Diego, CA |
US 80, US 84, US 380, US 366, US 80 |
| Evergreen National Highway |
Victoria, BC |
El Paso, TX |
US 99, US 10, US 97, US 410, US 95, US 30, US 30N, US 91, US 95, US 66 |
| Florida Short Route |
|
|
|
| George Washington National Highway |
Savannah, GA |
Seattle, WA |
|
| Geysers-to-Glaciers Highway |
Glacier National Park |
Yellowstone National Park |
|
| Glacier to Gulf Motorway |
Calgary, AB |
Tampico, Mexico |
|
| Glacier Trail |
Seattle, WA |
Miami, FL |
|
| Grant Highway |
Chicago, IL |
Portland, OR |
|
| International Peace Highway |
Quebec, QC and Rouses Point, NY |
Laredo, TX and Mexico City, Mexico |
|
| Jackson Highway |
Chicago, IL |
New Orleans, LA |
US 152, US 52, US 31, US 168, US 68, US 31, US 43, US 45, US 11 |
| Jefferson Highway |
Winnipeg, MB |
New Orleans, LA |
US 59, US 2, US 71, US 10N, US 10, US 65, US 69, US 71/US 73E, US 73, US 75, US 69, US 67, US 271, US 80, US 171, US 71, US 61 |
| Jefferson Davis National Highway |
Washington, DC |
San Francisco, CA |
US 1, US 278, US 29, US 80, US 43, US 90, US 96, US 277, US 90 |
| John Anderson Highway |
|
|
|
| King of Trails |
Winnipeg, MB |
Galveston, TX and Brownsville, TX |
US 75/US 81, US 75/US 77, US 75, US 73, US 73E, US 50, US 73W, US 75, US 77, US 81, US 181, US 96 |
| Kings Transcontinental Highway |
Ottawa |
Toronto |
|
| Lackawanna Trail |
Binghamton, NY |
Delaware, NJ |
|
| Lakes to Gulf Highway |
Duluth, MN |
Galveston, TX |
|
| Lakes-to-Sea Highway |
Atlantic City, NJ |
Erie, PA |
US 30, US 120, US 22, US 322, US 19 |
| Lee Highway |
New York, NY |
San Francisco, CA |
US 1, US 211, US 11, US 72, US 70, US 366, US 80, US 180, US 80, US 101 |
| Lewis and Clark Highway |
Missoula, MT |
Lewiston, ID |
|
| Liberty Highway |
|
|
|
| Lincoln Highway |
New York, NY |
San Francisco, CA |
US 1, US 30, US 530, US 40, US 50, US 40, US 99, US 48 |
| Logan-Lee Highway |
Rock Island, IL |
Paducah, KY |
|
| Lone Star Route |
Chicago, IL |
Lake Charles, LA (earlier Brownsville, TX) |
US 66, US 67, US 63, US 165 |
| Lone Star Trail |
St. Augustine, FL |
Los Angeles, CA |
US 1, US 90, US 84, US 67, US 290, US 80 |
| Magnolia Route |
|
|
|
| Meridian Highway |
Winnipeg, MB |
Mexico City, Mexico |
US 81 |
| Mississippi River Scenic Highway |
Winnipeg, MB and Port Arthur, ON |
Fort Myers, FL and Port Arthur, TX |
US 75, US 2, US 71, US 10N, US 10, US 61, US 55, US 61, US 90; US 49E, US 49, US 98, US 90, US 19, US 41 |
| Mississippi Valley Highway |
Ely, MN |
Gulfport, MS (earlier New Orleans, LA) |
US 53, US 61, US 55, US 161, US 67, US 51, US 45, US 11, US 49 |
Earlier known as the Burlington Way |
| National Old Trails Road |
Washington, DC and Baltimore, MD |
Los Angeles, CA |
US 240/US 40, US 40, US 50N, US 50, US 350, US 85, US 70, US 66 |
| National Park-to-Park Highway |
Loop connecting National Parks |
|
US 99, US 48, US 40, US 99E, US 99, US 10, US 195, US 95, US 2, US 87, US 87W, US 20, US 185, US 85, US 50, US 285, US 450, US 550, US 64, US 666, US 66 |
| National Parks Highway |
Boston, MA and New York, NY |
Seattle, WA |
|
Also known as the Northwest Trail |
| National Roosevelt Midland Trail |
Washington, DC and Newport News, VA (earlier Oyster Bay, NY) |
Los Angeles, CA |
US 60, US 150, US 50, US 40, US 40N, US 40, US 40S, US 50, US 6 |
| National White Way |
|
|
|
| New Santa Fe Trail |
|
|
|
| Old Oregon Trail |
Independence, MO |
Seaside, OR and Olympia, WA |
US 40, US 30, US 26, US 20, US 87E, US 30N, US 30 |
| Old Spanish Trail |
St. Augustine, FL |
San Diego, CA |
US 1, US 90, US 80 |
| Ozark Trails |
Kansas City, MO, Hannibal, MO, St. Louis, MO, and Memphis, TN |
Denver, CO, Las Vegas, NM, and El Paso, TX |
|
| Pacific Highway |
Vancouver, BC |
San Diego, CA |
US 99, US 40, US 101 |
| Pershing Way |
Winnipeg, MB |
New Orleans, LA |
|
| Pikes Peak Ocean to Ocean Highway |
New York, NY |
Los Angeles, CA (earlier San Francisco, CA) |
US 22, US 250, US 36, US 136, US 36, US 40N, US 40S, US 50, US 91 |
Also known as the Pershing Transport Route |
| Puget Sound-to-Gulf Highway |
|
|
|
| Red Ball Route |
|
|
|
| River-to-River Road |
Davenport, IA |
Omaha, NE |
|
| Southern National Highway |
|
|
|
| Southwest Trail |
Chicago, IL |
El Paso, TX |
US 32, US 65, US 50S, US 81, US 160, US 281, US 60, US 366 |
| Susquehanna Trail |
Buffalo, NY |
Washington, DC |
US 20, US 15, US 111/US 240 |
| Theodore Roosevelt International Highway |
Portland, ME |
Portland, OR |
US 302, US 2, US 11, US 104, US 23, US 2, US 95, US 195, US 295, US 410, US 30 |
| Three C Highway |
Cleveland, OH |
Cincinnati, OH |
US 42 |
| Victory Highway |
New York, NY |
San Francisco, CA |
US 1, US 40, US 40S, US 83, US 40N, US 40 |
| White River Trail |
Springfield, MO |
Ponca City, OK |
|
| William Penn Highway |
|
|
US 22 |
| Yellowstone Highway |
Denver, CO |
Yellowstone National Park |
|
| Yellowstone Trail |
Plymouth, MA |
Seattle, WA |
US 20, US 30, US 41, US 110, US 10, US 212, US 12, US 10, US 195, US 295, US 410, US 97, US 10 |