Source: Wikipedia, the free encyclopedia.
There are some listed at [1] that are just cities; these have not been listed below.
A
- A-B-C Trail
- Abe Lincoln Trail
- Abo Pass Highway
- Adeway
- Agate Highway
Air Line Highway
- Albany-Buffalo Highway
- Alamo-Victoria-San Jacinto Highway
- Albert Pike Highway (Albert Pike Highway Association)
- Hot Springs, AR to Colorado Springs, CO
- Alfalfa Trail
- Alton-Jacksonville Airline
- Altoona-Bellefonte-Cumberland Trail
- Anchor Line
- Anchor Way
- Anthracite Trail
- Apache Trail
- Appalachian Scenic Highway (Appalachian Scenic Highway Association)
- Aroostook Trail
- Arkansas, Rio Grande, Gunnison & Grande River Highway
- Arrowhead Trail
- Ashokan Reservoir Route
Atlantic Highway
- Atlantic & Gulf Highway
Atlantic-Pacific Highway
- Atlantic Yellowstone Pacific Hiway
- Auburn-Niles Route
- Ayr Line
B
- "B" Line Highway
- B.F. Blue Pole Trail
- Baltimore Pike
- Banff Grand Canyon Road
- Bankhead Highway, Washington, DC to San Diego, CA
- Battlefield Route
- Beartooth Trail
- Bedford-Danbury Route
- Bee Line
- Bee Line Highway
- Belleville-Carlyle Trail
- Belt Line
- Ben Hur Highway, St. Louis, MO to Fort Dodge, IA
- Ben Hur Route
Berkshire-Burlington Way
- Better Way
- Big Creek-Cohocton Valley Route
- Big Four Route
- Billings Cody Way
- Birmingham-Montgomery Highway
- Black Trail
- Black and Yellow Trail, Chicago, IL to Yellowstone Park
- Black Hills Trail
- Black Hills-Lake Metigoshe Highway
- Black Hills Loop Highway
- Black Hills Loop, River & Omaha Trail
- Black Hills, Rose Bud & Omaha Scenic Highway
- Black Hills Sioux Trail
- Black Hills-Yellowstone Park Highway
- Black River Valley Route
- Blackhawk Highway, Beloit, WI to Dixon, IL
- Bloomington Way
- Blue Grass Road
- Blue Grass Way
- Blue J Route
- Blue Line
- Blue Pole Highway
- Blue Valley Drive
- Bob Dunn Highway
- Boone Way
- Borderland Route
- Boston Haverhill Road
- Boston Post Road
- Boston Sakonnet Point Road
Boston-Wareham Road
- Brewster-Danbury Route
- Brewster-Middletown Route
- Bridge Route (Bear Mountain Bridge)
- Broadway of America
- Broadway-Salem Way Glastonbury East Hartford Route
- Buffalo Highway
- Buffalo Pittsburgh Highway
- Burlington & Peoria Air Line
- Burlington Highway
C
- California Banff Bee Line
- Camp Dix Way
- Canada, Kansas City and Gulf Road
- Cannon Ball Route
- Cannon Ball Trail
- Canton-Alliance-Pittsburgh Trail
- Cape May Way
- Capital Highway, Washington, DC to Atlanta, GA
- Capital Route, Omaha, NE to Austin, TX
- Capital Trail
- Caterpillar Trail
- Central Highway
Central Route
- Central Colorado Highway
- Central Dixie Highway
- Central Florida Highway
- Central Michigan Pike
- Central Montana Highway
- Central Nebraska Highway
- Central Texas Highway
- Charlotte-Wilmington Highway
- Chenango Valley Route
- Cheshire Road
- Chicago Trail
- Chicago, Black Hills and Yellowstone National Park Highway
- Chicago Buffalo Highway
- Chicago Dubuque Trail
- Chicago Iowa Trail
- Chicago, Kansas City and Gulf Highway, Chicago, IL to Galveston, TX
- Cincinnati Lookout Mountain Air Line
- Cincinnati-Parkersburg Way
- Clarion Way
- Cleveland-Canton-Parkersburg Way
- Coal Oil Highway
- Coast Route
- Coast to Coast Highway
- Coast to Coast Route
Colchester Yantic, Norwich-Pawcatuck Routes
- Colorado to Gulf Highway, Denver, CO to Galveston, TX and Brownsville, TX
- Columbia River Highway
Connecticut River Way
- Contoocook Valley Road
- Cooley Highway
- Corn Belt Highway (also listed as Corn Belt Road)
- Corn Belt Route
Cornhusker Highway
, Sioux City, IA to Oklahoma City, OK
- Cotton Belt Highway
- Council Bluffs, Sioux City & Spirit Lake Highway
- Cranberry Trail
- Cross State Trail
- Custer Trail
- Custer Battlefield Highway, Omaha, NE to Glacier National Park, MT
- Custer Battlefield Way
D
- Dahlonega Trail
- Dallas-Canadian-Denver Highway, Galveston, TX to Boulder, CO
- Danbury-Bridgeport Route
- Daniel Boone Trail
- Daniel Webster Highway
- Dansville Corning Route
- Dartmouth College Route
- Davis Highway
- Decatur-Birmingham Highway
- Denver-Black Hills Highway
- Denver Estevan Highway
- Denver-Joplin Highway
- Denver-Chicago Highway
- Des Moines-Fort Dodge & Spirit Lake Highway
- Detroit-Lincoln-Denver Highway, Detroit, MI to Denver, CO
- Diagonal Trail
- Diamond Trail
- Dixie Route A
- Dixie Bee Line, Chicago, IL to Nashville, TN
- Dixie Highway, Chicago, IL and Sault Ste. Marie, MI to Miami, FL
- Dixie Overland Highway, Savannah, GA to San Diego, CA
- Duluth-Fargo Highway
Dunes Highway
E
East Dixie Highway
- East Shore Tour
- East Texas Highway
- Effingham-Newton-Robinson Trail
- Egyptian Trail
- El Camino Real (California)
- Electric Highway
- Elmira-Cortland-Cazenovia Route
- Elmira-Watkins-Flint Route
- Erie Trail
- Ethan Allen Trail
- Ethan Allen Way
- Everett Powers Highway
- Evergreen National Highway, Victoria, BC to El Paso, TX
F
- F. F. F. Highway
- Farrier Highway
- Fitchburg Keene Route
- Flint Trail
- Florence-Tuscaloosa Highway
- Florida Short Route
- Fort Elliott Highway
- Fort Smith, Pauls Valley & Wichita Falls Highway, Fort Smith, AR to Wichita Falls, TX
- Fort Worth Plains Air Line
- Fox River Route
- Fox River Valley Highway
- French Lick Route
- Fulton Chain Route
G
- G. P. C. Highway
- Galatin Trail
- Galesburg-Peoria Trail
- Gap Way
- General Sullivan Trail
- Genesee Valley Route
- Geneva-Clifton Springs Route
- Geneva-Lyons Route
George Washington Highway
George Washington National Highway
, Seattle, WA to Savannah, GA
- Gettysburg-Baltimore-Annapolis Trail
Geysers-to-Glaciers Highway
, Yellowstone Park to Glacier Park
- Geysers to Glaciers Road
- Geysers to Glaciers Trail
- Glacier Trail, Seattle, WA to Miami, FL
- Glacier to Gulf Highway
- Glacier to Gulf Motorway, Calgary to Tampico
- Glen Falls-Lake Champlain Route
- Glidden Route
- Golden Belt Highway
- Golden Belt Road
- Golden Rod Highway
- Golden Rod Trail
- Grainland Highway
Grand Central Highway
- Grand Circle Tour
- Grand River Road
- Grant Highway, Chicago, IL to Portland, OR
- Great Plains Highway
- Great White Way
- Green Road
- Green Trail
- Green Mountain Pass
- Gulf to Panhandle Highway
H
- Hammond Highway
- Hannibal Edina Trail
- Hannibal Kirksville Trail
- Hannibal and St. Joseph Cross-State Highway
Harding Highway
- Harrison Trail
Hartford Springfield Way
Hartford Unionville Way
- Hartford-Westfield Route
- Havana-Lincoln-Champaign Trail
- Hawkeye Highway
- Herbert Hoover Highway
- Highland Cut Off
- Highline Highway
- Hoosic-Brattleboro Route
- Hoosick River Route
- Hoosier Highway
- Hoosier Dixie Highway
- Horatio Earl Memorial Highway
- Horse Shoe Trail
- Hub Highway
- Hubway
- Hudson-Berkshire Way
- Huntington Manitou Culver Trail
I
- I-O-A Short Line
- Illinois Corn Belt Route
- Imperial Highway
- Independence-Winfield Trail
- Indian Head Trail
- Industrial Way
- International Highway
- International Pavedway, Detroit, MI to Laredo, TX
- International Peace Highway, Quebec and Rouses Point, NY to Laredo, TX and Mexico City
- Inter-State Trail
- Iowa Parks Highway
- Itasca Park Highway
J
- Jackson Highway, Chicago, IL and Niagara Falls, NY to New Orleans, LA
- Jefferson Highway, Winnipeg to New Orleans, LA
- Jefferson Davis Highway
- )
Jericho Turnpike
- Jersey Link
- Jersey Coast Way
- Jim Hogg Highway
K
- Kansas City & Oklahoma Highway
- Kansas City, Iola & Tulsa Highway
- Kansas City-Ft Scott-Miami-Tulsa Short Line
- Kansas-Colorado Boulevard
- Kansas-Oklahoma-Texas Highway
- Kansas Oklahoma Texas & Gulf Highway
- Kansas White Way
- Keeway Trail
- Kennebec-Penobscot Trail
- Keystone Trail
- Keyway Trail
- Kickapoo Trail
- Killington Trail
- King Edward Highway
King of Trails
, Winnipeg to Galveston, TX or Brownsville, TX
- Knoxville-Chattanooga Highway
L
- L. T. K. Trail
Lackawanna Trail
, Delaware, NJ to Binghamton, NY
- Lake Harris Route
- Lakes to Gulf Highway, Duluth, MN to Galveston, TX
- Lakes & River Drive
Lakes to Sea Highway
, Erie, PA to Atlantic City, NJ
- Lawrence-Salem Way
- Leather-Stocking Trail
- Lee Highway, Washington, DC or New York, NY to San Diego, CA or San Francisco, CA
- Lee-Jackson Highway
- Lewis and Clark Highway,[disambiguation needed] Lewiston, ID to Missoula, MT
- Liberty Way
- Lincoln Highway, New York, NY to San Francisco, CA
- Lincoln Trail
- Lincoln-Crete-Dorchester Trail
- Lincoln Hawkeye Pike
- Lincoln Memorial Road, Washington, DC to Gettysburg, PA
- Lincoln-Sterling Highway
- Lincoln-Valparaiso Highway
- Little Rock-Texarkana Highway
- Logan-Lee Highway, Rock Island, IL to Paducah, KY
- Lone Star Route, Chicago, IL to Brownsville, TX or Lake Charles, LA
- Lone Star Trail
- Longfellow Highway
- Louisville-Lexington-Latonia Trail
- Lynn-Salem Way
M
- Mackinaw Indian Trail
Manchester Somers Route
- Magnolia Route
- Mandan Killdeer Mountain Highway
- Marion Kenton Trail
- McDavid Trail
- Memorial Boulevard
Memphis-Bristol Highway
- Meridian Highway, Winnipeg to Laredo, TX or Mexico City
- Meridian Road, Pembina, ND to Galveston, TX
- Michigan Road
- Michigan-Detroit-Chicago Highway
- Mid-State Highway
- Middle Buster Highway
- Midland Trail, Washington, DC and Richmond, VA to Oakland, CA and Los Angeles, CA
- Midwest Trail
- Miller Trunk Line
- Mineral Wells Trail
- Minnesota Scenic Highway
- Minute Man Route
- Mississippi River Highway
- Mississippi River Scenic Highway, Winnipeg and Port Arthur, ON to New Orleans, LA and Tampa, FL or Fort Myers, FL and Port Arthur, TX
- Mississippi Scenic Route
- Mississippi Valley Highway (formerly Burlington Way), Duluth, MN or Ely, MN to New Orleans, LA or Gulfport, MS
- Moberly Quincy Air Line
- Mohawk Trail
- Mohawk-Lake Ontario Route
- Montauk Highway
- Montgomery-Lowndes-Dallas Highway
- Montour Falls Cayuta Route
- Mount Desert Trail
- Muncie Lima Fremont
N
- National Highway
- National Midland Trail, Eastern Division, East St. Louis, IL to Washington, DC
- National Old Trails Road, Washington, DC and Baltimore, MD to Los Angeles, CA
National Park-to-Park Highway
, "circuit of National Parks"
- ), Boston, MA and New York, NY to Seattle, WA
- National Parks Pike
National Roosevelt Midland Trail
, Washington, DC and Newport News, VA to Los Angeles, CA
- National Short Cut Highway
- National White Way
Naugatuck-New Haven Route
Naugatuck River Route
- Navajo Trail
- Nelson Trail
New Hampshire College Road
New Haven Derby Road
New Haven Farmington Way
New Haven Middletown Way
- New Haven Springfield Way
New London Colchester Route
- New London Colchester Glastonbury Route
New London Fitchburg Route
New London-Norwich-Stafford Route
New Santa Fe Trail
- New York and Berkshire Route
- New York-Albany-Montreal Route
- New York-Albany-Troy Post Road
Newtown-Bridgeport Way
- Niagara River Route
- North and South Pike
- North Hampton Pittsfield Way
North Hempstead Turnpike
- North Iowa Pike
- North Missouri Cross-State Highway
- North Platte Valley Highway
- North Shore Trail
- North & South Pike
- North Star Highway
- North Star Route
- North Star Trail
- North Texas Highway
- Northern Highway
- Northern Tier Route
- Northwestern Highway
Nutmeg Trail
O
- O. A. A. Trail
- O. K. Short Line
- Oakdale Trail
- Ocean-to-Ocean Highway
- Oconomowoc-Milwaukee Road
- Ohio Indiana Michigan Way
- Oil Belt Route
- Oil City Route
- Okaw Trail
- Oklahoma City Lincoln Highway
- Oklahoma-Kansas-Colorado Highway
- Okoboji Trail
- Old Burlington Way
- Old Oregon Trail, Independence, MO to Seaside, OR and Olympia, WA
Old Santa Fe Trail
- Old Spanish Trail, St. Augustine, FL to San Diego, CA
- Old Trails Road
- Omaha Trail
- Omaha-Lincoln-Denver Trail
- Omaha-Lincoln-Denver Trans-Continental Route
- Omaha-St. Louis Short Line
- Omaha-Topeka Trail
- Oregon Trail
- Osage Highway
- Oswego River Route
- Overland Trail
Ozark Trails
, Kansas City, Hannibal, St. Louis, and Memphis to Denver, Las Vegas, and El Paso
P
Pacific Highway
, Vancouver, BC to San Diego, CA or Tijuana
- Parks Highway
- Peoria-Pekin-Bloomington Way
Perry Highway
- Peoria-Pekin-Havana Jack Way
- Pershing Way, Winnipeg to New Orleans, LA
- Pigeon Roost Route
- Pike's Peak Ocean-to-Ocean Highway (Pershing Transport Route), New York, NY to San Francisco, CA or Los Angeles, CA
- Pittsburgh-Erie Way
- Pittsburgh-Uniontown Way
- Plains Air Line
- Plains Mountain Highway
- Platte Purchase Route
Post Road
- Postal Highway
- Potash Highway
- Poughkeepsie-Hartford Route
- Poughkeepsie-Sharon Route
- Powder River Trail
- Powder Way
Providence-Rice City Route
- Puget Sound to Gulf Highway
Q
- Quebec-Miami International Highway
- Quincy Trail
R
- Rainbow Route
- Randolf Gulf Route
Range Line
Red Ball Route
- Red Clover Leaf Route
- Red Line Road
- Red Star Route
Red X Route
Redwood Highway
- Regina Yellowstone Trail
- Resort Route
- Ridge Road
- River Road
River-to-River Road
, Davenport, IA to Omaha, NE
- Robertson Highway
- Robby Highway
- Rochester-Caledonia Route
- Rochester-Canandaigua Route
- Rock Island Highway
- Rock River Resorts Route
- Rock River Valley Route
- Rockingham Road
Rockville-Willington Route
- Rocky Mountain Highway
- Rocky Pond Road
- Roger Q. Mills Highway
- Rome-Oneida Route
Roosevelt Highway
- Roosevelt Midland Highway
- ), Oyster Bay, NY to Los Angeles, CA
- Rose Trail
S
- Sacandaga-Lake Pleasant Route
- Sa-Ka-Ka-Wea Trail
- Salt Lake Yellowstone Highway
- San Antonio-Atascosa and Gulf Highway
- San Antonio-Blanco and Granite Highway
- San Antonio-Laredo Highway
- San Antonio-Port O'Connor Highway
- Santa Fe, Grand Canyon and Needles National Highway
- Santa Fe Trail, New York, NY to San Diego, CA
- Saranac-Lake Placid Route
- Schenectady-Lake George Route
- Schuylkill River Route
- Scioto Trail
- Sedalia Joplit Short Line
- Sedalia-Springfield Highway
- Sequoyah Trail
- Shabbona Trail
- Shenandoah Valley Pike
- Sherman Pike
- Sherman-Sheridan Highway
- Shore Road
- Short Cut West Highway
- Short Line Route
- Sioux City, Dennison Cut Off
- Sioux Falls-Salem-Huron Road
- Sioux Falls-Salem-Iroquois Highway
- Skaneateles Route
- Solomon Valley Highway
- South Atlantic Coastal Highway
- South Dakota Scenic Highway
- South Shore Trail
- South Side Road
- Southeastern Highway
Southern Highway
- Southern Minnesota Air Line
- Southern National Highway, Washington, DC to San Diego, CA
- Southern Ocean to Ocean Highway
- Southern Tier Route
- Southern Tier Trail
- South West Trail, Chicago, IL to El Paso, TX
- Spanish Trail
- St. Augustine Road
- St. Joe-Des Moines Ayr Line
- St. Joe-Des Moines Interstate Trail
- St. Lawrence River Route
- Star Highway
- Starved Rock Trail
- Suncook Valley Road
- Sunflower Trail
- Sunset Trail
- Sunshine Highway
- Susquehanna Trail, Buffalo, NY to Washington, DC
- Susquehanna Valley Route
- Swastika Trail
T
- Talladega-Montgomery Highway
- Tamiami Trail
- Tecumseh Trail
- Terre Haute-Columbus-Cincinnati Trail
- Terre Haute-Decatur-Springfield Trail
- Texas, Arkansas and Louisiana Highway
- Texas Mexico Division (Bankhead Highway)
- Texas Oklahoma Colorado Highway
- Theodore Roosevelt International Highway, Portland, ME to Portland, OR
- Thompsonville-Stafford Springs Way
- Thousand Islands Trail
Three "C" Highway
, Cleveland, OH to Cincinnati, OH
Tidewater Trail
, Norfolk, VA to Washington, DC
- Tip Top Trail
- Toledo Chicago Pike
- Toledo-Angola-Goshen Trail
- Toledo-Cleveland-Buffalo Route
- Toledo-Cleveland-Buffalo Trail
- Top of Michigan Trail
- Torrington-Norwalk Route
Transit Road
Tri-State Trail
- Troy East Greenbush Route
- Trunk Highway
- Tuxedo Trail
- Twin City-Aberdeen-Yellowstone Park Trail
- Twin City Black Hills Cut Off
- Twin City Black Hills Yellowstone Trail
- Two "C" Highway
U
- U of I Trail
- Union Pacific Highway
- University Trail
- Utah-Idaho-Yellowstone Highway
V
- Valley City, Minot, Green Trail
- Valparaiso-Joliet
- Victory Highway, New York, NY to San Francisco, CA
- Vigilante Trail
W
- Wabash Trail
- Wabash Way
- Washington-Harrisburg Route
- Washington Highway
- Waterloo-Ithaca-Owego Route
- Waubonsie Trail
- Wayne Highway
West Michigan Pike
- West Side Road
- Western Michigan Lakeshore Highway
- White Horse Trail
- White River Trail, Springfield, MO to Ponca City, OK
- White Way-7-Highway
- William Penn Highway
- Wonderland Way
- Woodpecker Route
- Woodrow Wilson Way
X
- "X" All Highway
Y
- Yellow Trail
Yellowstone Highway
, Denver, CO to Yellowstone National Park
- Yellowstone Trail, Plymouth, MA to Seattle, WA
- Yellowstone Glacier "B" Line
- York Trail
Z