View source for Auto trail

{{Short description|Historic type of marked roadway}}
{{Original research|date=December 2007}}

{{Multiple image
| header = 1922 map of auto trails
| width    = 250
| image1   = Cram Transcontinental Highways of the United States 1922 UTA (left).jpg
| image2   = Cram Transcontinental Highways of the United States 1922 UTA (right).jpg
}}

The system of '''auto trails''' was an informal network of marked routes that existed in the [[United States]] and [[Canada]] in the early part of the 20th century.  Marked with colored bands on [[utility pole]]s, the trails were intended to help travellers in the early days of the [[automobile]].

Auto trails were usually marked and sometimes maintained by organizations of private individuals. Some, such as the [[Lincoln Highway]], maintained by the Lincoln Highway Association, were well-known and well-organized, while others were the work of fly-by-night promoters, to the point that anyone with enough paint and the will to do so could set up a trail.  Trails were not usually linked to road improvements, although counties and [[U.S. state|states]] often prioritized road improvements because they were on trails.

In the mid-to-late 1920s, the auto trails were essentially replaced with the [[United States Numbered Highway System]].  The Canadian provinces had also begun implementing similar numbering schemes.

== List of auto trails ==
<!--please verify before adding one that it was actually an auto trail-->
{{inc-transport|date=August 2008}}
<!--old termini are only shown if it was truncated or realigned, not simply extended-->
{| class="wikitable sortable"
!Name
!class="unsortable"|North or east end<!--placing this first because that's how they were generally listed; people wanted to go from the Northeast to other places-->
!class="unsortable"|South or west end
!class="unsortable"|[[U.S. Highway]]s (approximate, based on 1926 plan and later additions)
!class="unsortable"|Notes
!class="unsortable"|Highway Marker
|-
|[[Albert Pike Highway]]
|[[Hot Springs, Arkansas]]
|[[Colorado Springs, Colorado]]
|[[U.S. Route 270|US 270]], [[U.S. Route 64|US 64]], [[U.S. Route 183|US 183]], [[U.S. Route 154|US 154]], [[U.S. Route 50|US 50]], [[U.S. Route 85|US 85]]
|
|n/a
|-
|[[Aroostook Trail]]
|[[Old Town, Maine]]
|[[Fairfield, Maine]]
|[[Maine State Route 100|Maine Route 100]], [[U.S. Route 2|US 2]]
|
|n/a
|-
|[[Arrowhead Trail (auto trail)|Arrowhead Trail]]
|[[Salt Lake City, Utah]]
|[[Los Angeles, California]]
|[[U.S. Route 91|US 91]]
|
|[[File:Arrowhead Trails Association.svg|75px]]
|-
|[[Atlantic Highway (United States)|Atlantic Highway]]
|[[Calais, Maine]]
|[[Miami, Florida]]
|[[U.S. Route 1|US 1]]<!--shown via Wilmington on 1924 map – is this correct?-->, [[U.S. Route 25|US 25]], [[U.S. Route 17|US 17]], US 1
|
|n/a
|-
|[[Atlantic-Pacific Highway]]
|[[New York, New York]]
|[[Los Angeles, California]]
|[[U.S. Route 1|US 1]]<!--shown via Wilmington on 1924 map – is this correct?-->, [[U.S. Route 211|US 211]], [[U.S. Route 15|US 15]], [[U.S. Route 33|US 33]], <!--SR 42, -->[[U.S. Route 60|US 60]], [[U.S. Route 52|US 52]], <!--Cincinnati to Jasper, -->[[U.S. Route 460|US 460]], [[U.S. Route 50|US 50]], [[U.S. Route 54|US 54]], [[U.S. Route 70|US 70]], [[U.S. Route 60|US 60]]<!--later realignment/extension-->
|
|n/a
|-
|[[Atlantic Yellowstone Pacific Highway]]
|[[Chicago, Illinois]]
|[[Sioux Falls, South Dakota]]
|[[U.S. Route 20|US 20]], [[U.S. Route 218|US 218]], [[U.S. Route 18|US 18]]
|
|n/a
|-
|[[Baltimore Pike]]
|[[Philadelphia, Pennsylvania]]
|[[Baltimore, Maryland]]
|
|
|[[File:Baltimore Pike marker.svg|75px]]
|-
|[[Bankhead Highway]]
|[[Washington, D.C.]]
|[[San Diego, California]]
|[[U.S. Route 1|US 1]], [[U.S. Route 15|US 15]], [[U.S. Route 70|US 70]], [[U.S. Route 170|US 170]], [[U.S. Route 29|US 29]], [[U.S. Route 78|US 78]], US 70, [[U.S. Route 67|US 67]], [[U.S. Route 80|US 80]]
|
|[[File:Bankhead Highway marker.svg|75px]]
|-
|[[Bee Line Highway]]
|[[Chicago, Illinois]]
|[[New Orleans, Louisiana]]
|[[U.S. Route 51|US 51]]
|
|n/a
|-
|[[Ben Hur Highway]]
|[[St. Louis, Missouri]]
|[[Fort Dodge, Iowa]]
|
|
|n/a
|-
|[[Black and Yellow Trail]]
|[[Chicago, Illinois]]
|[[Yellowstone National Park]]
|[[U.S. Route 41|US 41]], [[U.S. Route 16|US 16]], [[U.S. Route 14|US 14]], US 16, [[U.S. Route 20|US 20]]
|
|
[[File:Black and Yellow Trail marker.svg|75px]]
|-
|[[Blackhawk Highway]]
|[[Dixon, Illinois]]
|[[Beloit, Wisconsin]]
|[[Illinois Route 2|IL 2]], [[Illinois Route 251|IL 251]], [[U.S. Route 51|US 51]]
|
|n/a
|-
|[[Broadway Of America]]
|[[New York City, New York]]
|[[San Diego, California]]
|[[U.S. Route 80|US 80]], [[Arizona State Route 87|Arizona 87]], [[Arizona State Route 84|Arizona 84]], US 80, [[U.S. Route 67|US 67]], [[U.S. Route 70|US 70]], [[U.S. Route 41|US 41]], [[U.S. Route 70S|US 70S]], US 70, [[U.S. Route 11W|US 11W]], [[U.S. Route 11|US 11]], [[U.S. Route 211|US 211]], [[U.S. Route 1|US 1]], [[U.S. Route 40|US 40]], [[U.S. Route 13|US 13]], US 1
|Later addition auto trail, established in 1930. One alignment used Arizona 87 and Arizona 84 between Gila Bend and Tucson, another followed US 80 between both cities.<ref name="Jensen">{{cite book |title=Drive the Broadway of America! |publisher=Bygone Byways |last=Jensen |first= Jeff |year=2013 |location=Tucson |isbn=9780978625900}}</ref><ref>{{Cite map |title=Broadway Of America |publisher=American Automobile Association |scale=1:5,300,000 |location=Washington, D.C. |date=1932 |url=https://collections.leventhalmap.org/search/commonwealth:0r96fq392 |access-date=March 28, 2023}}</ref>
|n/a
|-
|[[California-Banff Bee Line]]
|
|
|
|
|n/a
|-
|[[Cannon Ball Route]]
|[[Chicago, Illinois]]
|[[Hannibal, Missouri]]
|
|
|n/a
|-
|[[Capital Route]]
|[[Omaha, Nebraska]]
|[[Austin, Texas]]
|
|
|n/a
|-
|[[Chicago, Kansas City and Gulf Highway]]
|[[Chicago, Illinois]]
|[[Galveston, Texas]]
|
|
|n/a
|-
|[[Colorado to Gulf Highway]]
|[[Denver, Colorado]]
|[[Galveston, Texas]], and [[Brownsville, Texas]]
|[[U.S. Route 85|US 85]], [[U.S. Route 385 (1926)|US 385]], [[U.S. Route 370|US 370]], [[U.S. Route 81|US 81]], [[U.S. Route 181|US 181]]
|
|n/a
|-
|[[Historic Columbia River Highway|Columbia River Highway]]
|[[Pendleton, Oregon]]
|[[Portland, Oregon]]
|[[U.S. Route 30|US 30]]
|
|[[File:HCRH keystone logo.png|75px]]
|-
|[[Cooley Highway]]
|[[Grand Rapids, Minnesota]]
|[[Sisseton, South Dakota]]
|
|
|n/a
|-
|[[Cornhusker Highway]]
|[[Sioux City, Iowa]]
|[[Oklahoma City, Oklahoma]]
|
|
|n/a
|-
|[[Custer Battlefield Highway]]
|[[Omaha, Nebraska]]
|[[Glacier National Park (U.S.)|Glacier National Park]]
|[[U.S. Route 75|US 75]], [[U.S. Route 16|US 16]], [[U.S. Route 116|US 116]], [[U.S. Route 87E|US 87E]], [[U.S. Route 87|US 87]]
|
|n/a
|-
|[[Dallas-Canadian-Denver Highway]]
|[[Boulder, Colorado]]
|[[Galveston, Texas]]
|[[U.S. Route 85|US 85]], [[U.S. Route 50|US 50]], [[U.S. Route 83|US 83]], [[U.S. Route 70|US 70]], [[U.S. Route 77|US 77]]
|
|n/a
|-
|[[Daniel Webster Highway]]
|[[Chartierville, Quebec]]
|[[Franconia, New Hampshire]]
|
|
|n/a
|-
|[[Detroit-Lincoln-Denver Highway]]
|[[Detroit]], Michigan
|[[Denver, Colorado]]
|[[U.S. Route 12|US 12]], [[U.S. Route 32|US 32]], [[U.S. Route 38|US 38]]
|
|n/a
|-
|[[Dixie Highway]]
|[[Chicago, Illinois]] and [[Sault Ste. Marie, Michigan]]
|[[Miami, Florida]]
|[[Illinois Route 1|Illinois 1]], [[U.S. Route 136|US 136]], [[U.S. Route 31|US 31]], [[Indiana State Road 37|Indiana 37]], [[U.S. Route 150|US 150]], [[U.S. Route 31W|US 31W]]
|
|[[File:Dixie Highway marker.svg|75px]]
|-
|[[Dixie Bee Line]]
|[[Chicago, Illinois]]
|[[Nashville, Tennessee]]
|[[U.S. Route 41|US 41]], [[U.S. Route 241 (1926)|US 241]]
|
|n/a
|-
|[[Dixie Overland Highway]]
|[[Savannah, Georgia]]
|[[San Diego, California]]
|[[U.S. Route 80|US 80]], [[U.S. Route 84|US 84]], [[U.S. Route 380|US 380]], [[U.S. Route 366 (1926)|US 366]], US 80
|
|[[File:Dixie Overland Highway sign 1.svg|75px]]
|-
|[[Egyptian Trail]]
|[[Chicago, Illinois]]
|[[Cairo, Illinois]]
|
|
|n/a
|-
|[[Electric Highway (Auto trail)]]
|[[Forsyth, Montana]]
|[[Helena, Montana]]
|[[U.S. Route 12|US 12]], [[U.S. Route 89|US 89]]
|
|n/a
|-
|[[Evergreen National Highway]]
|[[Victoria, British Columbia]]
|[[El Paso, Texas]]
|[[U.S. Route 99|US 99]], [[U.S. Route 10|US 10]], [[U.S. Route 97|US 97]], [[U.S. Route 410|US 410]], [[U.S. Route 95|US 95]], [[U.S. Route 30|US 30]], [[U.S. Route 30N (Idaho-Wyoming)|US 30N]], [[U.S. Route 91|US 91]], US 95, [[U.S. Route 66|US 66]]<!--then how?-->
|
|n/a
|-
|[[Florida Short Route]]
|
|
|
|
|n/a
<!--|-
|[[Fort Smith, Pauls Valley & Wichita Falls Highway]]
|
|commenting this out because I can find VERY little about it, even though it's on the 1924 map-->
|-
|[[French Lick Route]]
|[[Cincinnati, Ohio]]
|[[Evansville, Indiana]]
|[[U.S. Route 50|US 50]], [[Indiana State Road 37|State Road 37]], [[U.S. Route 150|US 150]], [[Indiana State Road 56|State Road 56]], [[U.S. Route 231|US 231]], and [[Indiana State Road 62|State Road 62]]
|
|n/a
|-
|[[George Washington Memorial Highway]]
|[[Cambridge, Massachusetts]]
|[[Agawam, Massachusetts]]
|
|
|n/a
|-
|[[George Washington National Highway]]
|[[Savannah, Georgia]]
|[[Seattle, Washington]]
|<!--shown on the midget map, but not sure how it went-->
|
|n/a
|-
|[[Geysers-to-Glaciers Highway]]
|[[Glacier National Park (U.S.)|Glacier National Park]]
|[[Yellowstone National Park]]
|[[U.S. Route 89|US 89 W]] from West Yellowstone to [[Shelby, Montana]]; [[U.S. Route 2|US 2]] from Shelby to [[Cut Bank, Montana]]; and [[Montana Secondary Highway 213|MT 213]] from Cut Bank to the Canada–US border<ref>{{cite book |last1=Baranowski |first1=Shelley |last2=Furlough |first2=Ellen |title=Being Elsewhere: Tourism, Consumer Culture, and Identity in Modern Europe and North America |location=Ann Arbor, Mich. |publisher=University of Michigan Press |date=2001 |pages=168–169}}</ref><ref>{{Cite book |chapter-url=https://books.google.com/books?id=SfpBAAAAYAAJ&pg=RA9-PA21 |title=Rules and Regulations Yellowstone National Park, 1920. Season June 20 to September 15. |author=Department of the Interior / National Park Service |publisher=Government Printing Office |location=Washington, D.C. |date=1920 |language=en |chapter=Automobile Highway Information |pages=21–23}}</ref>
|
|n/a
|-
|[[Glacier to Gulf Motorway]]
|[[Calgary]], [[Alberta]]
|[[Tampico, Mexico]]
|<!--not all shown on the 1924 map-->
|
|n/a
|-
|[[Glacier Trail]]
|[[Seattle, Washington]]<!--but shown to Vancouver on the 1924 map-->
|[[Jacksonville, Florida]]
|<!--[[U.S. Route 10|US 10]], [[U.S. Route 195|US 195]], [[U.S. Route 95|US 95]], [[U.S. Route 2|US 2]], [[U.S. Route 52|US 52]], [[U.S. Route 10|US 10]], looks like there were several branches-->
|
|n/a
|-
|[[Grant Highway]]
|[[Chicago, Illinois]]
|[[Portland, Oregon]]
|[[U.S. Route 20|US 20]]
|
|n/a
|-
|[[Great Plains Road]]
|[[Portal, North Dakota]]
|[[Brownsville, Texas]]
|
|
|n/a
|-
|[[Great White Way (Auto trail)|Great White Way]]
|[[Davenport, Iowa]]
|[[Council Bluffs, Iowa]]
|[[U.S. Route 6|US 6]]
|Also known as the White Pole Road
|n/a
|-
|[[International Peace Highway]]
|[[Quebec, Quebec]], and [[Rouses Point, New York]]
|[[Laredo, Texas]], and [[Mexico City]], Mexico
|
|
|n/a
|-
|[[Jackson Highway]]
|[[Chicago, Illinois]]
|[[New Orleans, Louisiana]]
|[[U.S. Route 152|US 152]], [[U.S. Route 52|US 52]], [[U.S. Route 31|US 31]], [[U.S. Route 168|US 168]], [[U.S. Route 68|US 68]], US 31, [[U.S. Route 43|US 43]], [[U.S. Route 45|US 45]], [[U.S. Route 11|US 11]]
|
|[[File:Jackson Highway marker.svg|75px]]
|-
|[[Jefferson Highway]]
|[[Winnipeg]], [[Manitoba]]
|[[New Orleans, Louisiana]]
|[[U.S. Route 59|US 59]], [[U.S. Route 2|US 2]], [[U.S. Route 71|US 71]], [[U.S. Route 10N (Minnesota)|US 10N]], [[U.S. Route 10|US 10]], [[U.S. Route 65|US 65]], [[U.S. Route 69|US 69]], [[U.S. Route 71|US 71]]/[[U.S. Route 73E|US 73E]], [[U.S. Route 73|US 73]], [[U.S. Route 75|US 75]], [[U.S. Route 69|US 69]], [[U.S. Route 67|US 67]], [[U.S. Route 271|US 271]], [[U.S. Route 80|US 80]], [[U.S. Route 171|US 171]], US 71, [[U.S. Route 61|US 61]]
|
|[[File:Jefferson Highway marker.svg|75px]]
|-
|[[Jefferson Davis Highway|Jefferson Davis National Highway]]
|[[Washington, D.C.]]
|[[San Diego, California]]
|[[U.S. Route 1|US 1]], [[U.S. Route 278|US 278]], [[U.S. Route 29|US 29]], [[U.S. Route 80|US 80]], [[U.S. Route 43|US 43]], <!--not shown through Mississippi/Louisiana-->[[U.S. Route 90|US 90]], [[U.S. Route 96 (1926)|US 96]], <!--SH 72 etc to Eagle Pass-->[[U.S. Route 277|US 277]], [[U.S. Route 90|US 90]]<!--not shown beyond Texas-->
|
|[[File:Jefferson Davis Highway marker.svg|75px]]
|-
|[[King of Trails]]
|[[Winnipeg]], [[Manitoba]]
|[[Galveston, Texas]], and [[Brownsville, Texas]]<!--1922 list says Galveston; 1924 map says Brownsville, but the map actually labels both routes; 1926 Rand McNally shows both-->
|[[U.S. Route 75|US 75]]/[[U.S. Route 81|US 81]], US 75/[[U.S. Route 77|US 77]], US 75, [[U.S. Route 73|US 73]], [[U.S. Route 73E|US 73E]], [[U.S. Route 50|US 50]], [[U.S. Route 73W|US 73W]], US 75, US 77, [[U.S. Route 81|US 81]], [[U.S. Route 181|US 181]], [[U.S. Route 96 (1926)|US 96]]
|
|n/a
|-
|[[Lackawanna Trail]]
|[[Binghamton, New York]]
|[[Delaware, Warren County, New Jersey|Delaware, New Jersey]]
|[[U.S. Route 11|US 11]],<ref>{{Cite web |last= Kitsko |first= Jeffrey |title= US 11 |url= http://www.pahighways.com/us/US11.html |work= Pennsylvania Highways |publisher= Self-published |access-date= January 16, 2013}}</ref>{{unreliable source?|date=January 2013}} [[U.S. Route 611|US 611]]<ref>{{Cite web |last= Kitsko |first= Jeffrey |title= US 611 (Decommissioned) |url= http://www.pahighways.com/us/decommissioned/US611.html |work= Pennsylvania Highways |publisher= Self-published |access-date= January 16, 2013}}</ref>{{unreliable source?|date=January 2013}}
|
|n/a
|-
|[[Lakes to Gulf Highway]]
|[[Duluth, Minnesota]]
|[[Galveston, Texas]]
|
|
|n/a
|-
|[[Lakes-to-Sea Highway]]
|[[Atlantic City, New Jersey]]
|[[Erie, Pennsylvania]]
|[[U.S. Route 30|US 30]], [[U.S. Route 120 (1926)|US 120]], [[U.S. Route 22|US 22]], [[U.S. Route 322|US 322]], [[U.S. Route 19|US 19]]
|
|n/a
|-
|[[Lee Highway]]
|[[Washington DC]]<!--Washington, D.C. in 1922-->
|[[San Diego, California]]<!--San Diego, California in 1922-->
|[[U.S. Route 1|US 1]], [[U.S. Route 211|US 211]], [[U.S. Route 11|US 11]], [[U.S. Route 72|US 72]], [[U.S. Route 70|US 70]], [[U.S. Route 366 (1926)|US 366]], [[U.S. Route 80|US 80]], [[U.S. Route 180 (1926)|US 180]], US 80, [[U.S. Route 101|US 101]]
|
|[[File:LeeHighway1925.jpg|75px]]
|-
|[[Lewis and Clark Highway (auto trail)|Lewis and Clark Highway]]
|[[Missoula, Montana]]
|[[Lewiston, Idaho]]
|
|
|n/a
|-
|[[Liberty Highway]]
|[[New York, New York]]
|[[Cleveland, Ohio]]
|[[New Jersey Route 4|New Jersey 4]], [[New Jersey Route 17|New Jersey 17]], [[New York State Route 17|New York 17]], [[New York State Route 430|New York 430]], [[New York State Route 394|New York 394]], [[U.S. Route 20|US 20]]<ref name="motorage">{{Cite journal |last= Johnston |first= R. J. |title= The Liberty Highway: Touring and Driveaway Route Between Cleveland and New York |journal= Motor Age |date= April 4, 1918 |volume= 33 |issue= 14 |pages= 72–75 |url= https://books.google.com/books?id=vVgfAQAAMAAJ |access-date= January 16, 2013}}</ref>
|
|[[File:Liberty Highway Logo.jpg|75px]]
|-highway "rock island" Paducah, Kentucky
|[[Lincoln Highway]]
|[[New York, New York]]
|[[San Francisco, California]]
|[[U.S. Route 1|US 1]], [[U.S. Route 30|US 30]], [[U.S. Route 40|US 40]], [[U.S. Route 93|US 93]], [[U.S. Route 50|US 50]], [[U.S. Route 99|US 99]], [[U.S. Route 48 (1926)|US 48]]
|
|[[File:LincolnHighwayMarker.svg|75px]]
|-
|[[Logan-Lee Highway]]
|[[Rock Island, Illinois]]
|[[Paducah, Kentucky]]
|[[U.S. Route 67|US 67]], [[Illinois Route 3|Illinois 3]]
|
|n/a
|-
|[[Lone Star Route]]
|[[Chicago, Illinois]]
|[[Lake Charles, Louisiana]] (earlier [[Brownsville, Texas]])<!--Brownsville on 1922 list; truncated to Lake Charles on 1924 map and 1926 Rand McNally-->
|[[U.S. Route 66|US 66]], [[U.S. Route 67|US 67]], [[U.S. Route 63|US 63]], [[U.S. Route 165|US 165]]
|
|n/a
|-
|[[Lone Star Trail]]
|[[St. Augustine, Florida]]
|[[Los Angeles, California]]
|[[U.S. Route 1|US 1]], [[U.S. Route 90|US 90]], [[U.S. Route 84|US 84]], [[U.S. Route 67|US 67]], [[U.S. Route 290|US 290]], [[U.S. Route 80|US 80]], [[Arizona State Route 86|Arizona 86]], US 80, [[Arizona State Route 84|Arizona 84]], Maricopa–Casa Grande Highway (Arizona), [[Arizona State Route 238|Gila Bend–Maricopa Highway (Arizona)]], US 80<!--then how??-->
|
|n/a
|-
|[[Magnolia Route]]
|
|
|
|
|n/a
|-
|[[Meridian Highway]]
|[[Winnipeg]], [[Manitoba]]
|[[Mexico City]], Mexico<!--Laredo, Texas in 1922-->
|[[U.S. Route 81|US 81]]
|
|n/a
|-
|[[Mississippi River Scenic Highway]]
|[[Winnipeg]], [[Manitoba]], and [[Port Arthur, Ontario]]
|[[Fort Myers, Florida]]<!--Tampa, Florida in 1922--> and [[Port Arthur, Texas]]<!--New Orleans, Louisiana in 1922--><!--other endpoints also shown on the 1924 map – huh?-->
|[[U.S. Route 75|US 75]], [[U.S. Route 2|US 2]], [[U.S. Route 71|US 71]], [[U.S. Route 10N (Minnesota)|US 10N]], [[U.S. Route 10|US 10]], [[U.S. Route 61|US 61]], [[U.S. Route 55|US 55]], US 61, [[U.S. Route 90|US 90]]; [[U.S. Route 49E|US 49E]], [[U.S. Route 49|US 49]], [[U.S. Route 98|US 98]], [[U.S. Route 90|US 90]], [[U.S. Route 19|US 19]], [[U.S. Route 41|US 41]]
|
|[[File:Mississippi-river-scenic-highway-marker.png|75px]]
|-
|[[Mississippi Valley Highway]]
|[[Ely, Minnesota]]<!--Duluth, Minnesota in 1922-->
|[[Gulfport, Mississippi]] (earlier [[New Orleans, Louisiana]])
|[[U.S. Route 53|US 53]], [[U.S. Route 61|US 61]], [[U.S. Route 55|US 55]], [[U.S. Route 161|US 161]], [[U.S. Route 67|US 67]], [[U.S. Route 51|US 51]], [[U.S. Route 45|US 45]], [[U.S. Route 11|US 11]], [[U.S. Route 49|US 49]]
|Earlier known as the Burlington Way
|n/a
|-
|[[National Old Trails Road]]
|[[Washington, D.C.]], and [[Baltimore, Maryland]]
|[[Los Angeles, California]]
|[[U.S. Route 240|US 240]]/[[U.S. Route 40|US 40]], US 40, [[U.S. Route 50N|US 50N]], [[U.S. Route 50|US 50]], [[U.S. Route 350|US 350]], [[U.S. Route 85|US 85]], [[U.S. Route 70|US 70]], [[U.S. Route 66|US 66]]
|
|[[File:National Old Trails Road marker.svg|75px]]
|-
|[[National Park-to-Park Highway]]
|Loop connecting [[National Parks (US)|National Parks]]
|
|[[U.S. Route 99|US 99]], [[U.S. Route 48 (1926)|US 48]], [[U.S. Route 40|US 40]], [[U.S. Route 99E (northern California)|US 99E]], US 99, [[U.S. Route 10|US 10]], [[U.S. Route 195|US 195]], [[U.S. Route 95|US 95]], [[U.S. Route 2|US 2]], [[U.S. Route 87|US 87]], [[U.S. Route 87W|US 87W]], [[U.S. Route 20|US 20]], [[U.S. Route 185 (1926)|US 185]], [[U.S. Route 85|US 85]], [[U.S. Route 50|US 50]], [[U.S. Route 285|US 285]], [[U.S. Route 450|US 450]], [[U.S. Route 550|US 550]], [[U.S. Route 64|US 64]], [[U.S. Route 666|US 666]], [[U.S. Route 66|US 66]]
|
|[[File:National Park to Park Highway sign.svg|75px]]
|-
|[[National Parks Highway]]
|[[Boston, Massachusetts]], and [[New York, New York]]<!--the actual 1924 map shows it only west of Chicago-->
|[[Seattle, Washington]]
|
|Also known as the Northwest Trail
|n/a
|-
|[[National Roosevelt Midland Trail]]<!--"Roosevelt National Highway (Midland Trail) in 1922-->
|[[Washington, D.C.]] and [[Newport News, Virginia]] (earlier [[Oyster Bay (hamlet), New York|Oyster Bay, New York]])
|[[Los Angeles, California]]
|[[U.S. Route 60|US 60]], [[U.S. Route 150|US 150]], [[U.S. Route 50|US 50]], [[U.S. Route 40|US 40]], [[U.S. Route 40N|US 40N]], US 40, [[U.S. Route 40S|US 40S]], US 50, [[U.S. Route 6|US 6]]
|
|n/a
|-
|[[New Santa Fe Trail]]
|[[Kansas City, Missouri|Kansas City, Mo.]]
|[[Los Angeles]]
|[[US 50]], [[US 350]], [[US 85]], [[US 66]]
|
|n/a
|-
|[[Old Oregon Trail Highway|Old Oregon Trail]]
|[[Independence, Missouri]]
|[[Seaside, Oregon]], and [[Olympia, Washington]]
|[[U.S. Route 40|US 40]], [[U.S. Route 30|US 30]], [[U.S. Route 26|US 26]], [[U.S. Route 20|US 20]], [[U.S. Route 87E|US 87E]], [[U.S. Route 30N (Idaho-Wyoming)|US 30N]], US 30
|
|n/a
|-
|[[Old Spanish Trail (auto trail)|Old Spanish Trail]]
|[[St. Augustine, Florida]]
|[[San Diego, California]]
|[[U.S. Route 1|US 1]], [[U.S. Route 90|US 90]], [[U.S. Route 80|US 80]]
|
|[[File:Old Spanish Trail.svg|75px]]
|-
|[[Ozark Trails]]
|[[Kansas City, Missouri]], [[Hannibal, Missouri]], [[St. Louis, Missouri]], and [[Memphis, Tennessee]]
|[[Denver, Colorado]], [[Las Vegas, New Mexico]], and [[El Paso, Texas]]
|
|
|n/a
|-
|[[Pacific Highway (US)|Pacific Highway]]
|[[Vancouver]], [[British Columbia]]
|[[San Diego, California]]
|[[U.S. Route 99|US 99]], [[U.S. Route 40|US 40]], [[U.S. Route 101|US 101]]
|
|[[File:Pacific Highway sign.svg|75px]]
|-
|[[Pershing Way]]
|[[Winnipeg]], [[Manitoba]]
|[[New Orleans, Louisiana]]
|
|
|n/a
|-
|[[Pikes Peak Ocean to Ocean Highway]]
|[[New York, New York]]
|[[Los Angeles, California]] (earlier [[San Francisco, California]])
|[[U.S. Route 22|US 22]], [[U.S. Route 250|US 250]], [[U.S. Route 36|US 36]], [[U.S. Route 136|US 136]], US 36, [[U.S. Route 40N|US 40N]], [[U.S. Route 40S|US 40S]], [[U.S. Route 50|US 50]], [[U.S. Route 91|US 91]]
|Also known as the Pershing Transport Route
|[[File:Pikes Peak O-to-O Highway sign.svg|75px]][[File:Pikes Peak O-to-O Highway marker 2.svg|75px]]
|-
|[[Puget Sound-to-Gulf Highway]]
|
|
|
|
|n/a
|-
|[[Red Ball Route]]
|
|
|
|
|n/a
|-
|[[River-to-River Road]]
|[[Davenport, Iowa]]
|[[Council Bluffs, Iowa]]
|
|
|[[File:River to River Road pole.png|75px]]
|-
|[[Southern National Highway]]
|
|
|
|
|n/a
|-
|[[Southwest Trail (auto trail)|Southwest Trail]]
|[[Chicago, Illinois]]
|[[El Paso, Texas]]
|[[U.S. Route 32|US 32]], [[U.S. Route 65|US 65]], [[U.S. Route 50S|US 50S]], [[U.S. Route 81|US 81]], [[U.S. Route 160|US 160]], [[U.S. Route 281|US 281]], [[U.S. Route 60|US 60]], [[U.S. Route 366 (1926)|US 366]]
|
|n/a
|-
|[[Susquehanna Trail]]
|[[Buffalo, New York]]
|[[Washington, D.C.]]
|[[U.S. Route 20|US 20]], [[U.S. Route 15|US 15]], [[U.S. Route 111|US 111]]/[[U.S. Route 240|US 240]]
|
|[[File:Susquehanna Trail sign early.svg|75px]] [[File:Susquehanna Trail sign.svg|75px]]
|-
|[[Theodore Roosevelt International Highway]]
|[[Portland, Maine]]
|[[Portland, Oregon]]
|[[U.S. Route 302|US 302]], [[U.S. Route 2|US 2]], [[U.S. Route 11|US 11]], [[U.S. Route 104|US 104]], [[U.S. Route 23|US 23]], US 2, [[U.S. Route 95|US 95]], [[U.S. Route 195|US 195]], [[U.S. Route 295|US 295]], [[U.S. Route 410|US 410]], [[U.S. Route 30|US 30]]
|
|[[File:Theodore Roosevelt International Highway marker.svg|75px]]
|-
|[[Three C Highway]]
|[[Cleveland, Ohio]]
|[[Cincinnati, Ohio]]
|[[Ohio State Route 3|Ohio SR 3]]
|
|n/a
|-
|[[Transprovincial Highway]]
|[[Ottawa]]
|[[Toronto]]
|
|Later [[Ontario Highway 2]] and [[Ontario Highway 15]]
|n/a
|-
|[[Victory Highway]]
|[[New York, New York]]
|[[San Francisco, California]]
|[[U.S. Route 1|US 1]]<!--1924 map doesn't show if it's via Wilmington or not-->, [[U.S. Route 40|US 40]], [[U.S. Route 40S|US 40S]], [[U.S. Route 83|US 83]], [[U.S. Route 40N|US 40N]], US 40
|
|[[File:Victory Highway Sign.svg|75px]]
|-
|[[White River Trail]]
|[[Springfield, Missouri]]
|[[Ponca City, Oklahoma]]
|
|
|n/a
|-
|[[White-way 7 Highway]]
|[[Chicago, Illinois]]
|[[Omaha, Nebraska]]
|[[U.S. Route 32|US 32]]
|In Iowa, created from segments of the River to River Road from Davenport to Redfield, and the Great White Way from Dexter to Council Bluffs.
|n/a
|-
|[[William Penn Highway]]
|[[New York, New York]]
|[[Pittsburgh, Pennsylvania]]
|[[U.S. Route 22|US 22]]
|
|[[File:William Penn Highway marker.svg|75px]]
|-
|[[Yellowstone Highway]]
|[[Denver, Colorado]]
|[[Yellowstone National Park]]
|
|
|n/a
|-
|[[Yellowstone Trail]]
|[[Plymouth, Massachusetts]]
|[[Seattle, Washington]]
|[[U.S. Route 20|US 20]], [[U.S. Route 30|US 30]], [[U.S. Route 41|US 41]], [[U.S. Route 110|US 110]], [[U.S. Route 10|US 10]], [[U.S. Route 212|US 212]], [[U.S. Route 12|US 12]], US 10, [[U.S. Route 195|US 195]], [[U.S. Route 295|US 295]], [[U.S. Route 410|US 410]], [[U.S. Route 97|US 97]], US 10
|
|[[File:YellowstoneTrail.svg|75px]]
|}

== See also ==
*[[List of historic auto trails in Iowa]]
*[[List of U.S. Routes]]
*[[U.S. Highway association]]

== References ==
{{refbegin}}
*{{Cite book |author= American Automobile Association  |author-link= American Automobile Association |publisher= American Automobile Association |url= https://archive.org/details/highwaysgreenbo00assogoog |title=  Highways Green Book |year= 1922 |edition= 3rd |location= Washington, DC |pages= [https://archive.org/details/highwaysgreenbo00assogoog/page/n436 418]–20}}
*{{Cite map |publisher= [[Automobile Club of America]] and [[National Highways Association]] |url= http://alabamamaps.ua.edu/historicalmaps/unitedstates/1900.html |title= United States Touring Map |year= 1924}}
*{{Cite map |publisher= [[Clason Map Company]] |url= https://www.fhwa.dot.gov/infrastructure/midgetmap.cfm |title= Midget Map of the Transcontinental Trails of the United States |year= 1923}}
*{{Cite map|publisher=Clason Map Company |url=http://usautotrails.com/ClasonsPage/ |title=Touring Atlas of the United States |year=1925 }}{{dead link|date=October 2016 |bot=InternetArchiveBot |fix-attempted=yes }}
*{{Cite map |publisher= [[Rand McNally]] |title= Auto Road Atlas |year= 1926 |url= http://www.broermapsonline.org/members/}}
{{refend}}
{{Reflist}}

== External links ==
*[https://web.archive.org/web/20040216042021/http://www.marion.ohio-state.edu/fac/schul/trails/trails.html North American Auto Trails]
*Richard F. Weingroff, [https://www.fhwa.dot.gov/infrastructure/numbers.cfm From Names to Numbers: The Origins of the U.S. Numbered Highway System]

[[Category:Auto trails in the United States| ]]