The Susquehanna Trail was an

auto trail 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 poles, the trails were intended to help travellers in ...

in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

linking

Washington, D.C. ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...

with Niagara Falls, New York. It passed through

Baltimore, Maryland Baltimore ( , locally: or ) is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic (United States), Mid-Atlantic, and List of United States cities by popula ...

; Harrisburg, Pennsylvania;

Williamsport, Pennsylvania Williamsport is a city in, and the county seat of, Lycoming County, Pennsylvania, United States. It recorded a population of 27,754 at the 2020 Census. It is the principal city of the Williamsport Metropolitan Statistical Area, which has a popul ...

; and

Buffalo, New York Buffalo is the second-largest city in the U.S. state of New York (behind only New York City) and the seat of Erie County. It is at the eastern end of Lake Erie, at the head of the Niagara River, and is across the Canadian border from Sou ...

. In relatively modern terms, the Susquehanna Trail roughly followed the following highways: *

U.S. Route 1 U.S. Route 1 or U.S. Highway 1 (US 1) is a major north–south United States Numbered Highway that serves the East Coast of the United States. It runs from Key West, Florida, north to Fort Kent, Maine, at the Canadian border, making ...

, to

* U.S. Route 111 (now MD Route 45,

Interstate 83 Business Interstate 83 (I-83) is an Interstate Highway in the Eastern United States. Its southern terminus is at a signalized intersection with Fayette Street in Baltimore, Maryland; its northern terminus is at I-81 near Harrisburg, Pennsylvania. Most ...

and other minor routes), Baltimore to Harrisburg, Pennsylvania *

U.S. Route 22 U.S. Route 22 (US 22) is a west–east route and is one of the original United States highways of 1926, running from Cincinnati, Ohio, at US 27, US 42, US 127, and US 52 to Newark, New Jersey, at U.S. Route 1/9 in the Newark Airport Intercha ...

, Harrisburg to

Duncannon, Pennsylvania Duncannon is a borough in Perry County, Pennsylvania, United States. The population was 1,473 at the 2020 census. It is part of the Harrisburg–Carlisle Metropolitan Statistical Area. The center of population of Pennsylvania is located in Du ...

* U.S. Route 11, Duncannon to

Northumberland, Pennsylvania Northumberland is a borough in Northumberland County, Pennsylvania, United States. The population was 3,804 at the 2010 census. History A brewer named Reuben Haines, a native of Philadelphia, Pennsylvania, founded the town of Northumberland in ...

* PA Route 147, Northumberland to

Muncy, Pennsylvania Muncy is a borough in Lycoming County, Pennsylvania, United States. The name Muncy comes from the Munsee Indians who once lived in the area. The population was 2,442 at the 2020 census. It is part of the Williamsport, Pennsylvania Metropolitan S ...

U.S. Route 220 U.S. Route 220 (US 220) is a spur route of US 20. It runs in a north–south layout in the eastern United States, unlike its parent route as well as conventionally even-numbered highways which run east-west. US 220 extends for f ...

, Muncy to

* U.S. Route 15, Williamsport to

Wayland, New York Wayland is a town in Steuben County, New York, United States. The population was 3,733 at the 2020 census. The Town of Wayland contains a village called Wayland. The town is in the northern part of the county, northwest of Bath. History The r ...

* NY Route 63, Wayland to Dansville, New York * NY Route 36, Dansville to

Leicester, New York Leicester ( ) is a town in Livingston County, New York, United States. The population was 2,200 at the 2010 census. The town is named after Leicester Phelps, an early inhabitant. Leicester is on the western border of Livingston County. The v ...

* U.S. Route 20A, Leicester to

East Aurora, New York East Aurora is a village in Erie County, New York, United States, southeast of Buffalo. It lies in the eastern half of the town of Aurora. The village population was 5,998 per the 2020 census. It is part of the Buffalo–Niagara Falls Metr ...

* NY Route 16, East Aurora to

NY Route 5 New York State Route 5 (NY 5) is a state highway that extends for across the state of New York in the United States. It begins at the Pennsylvania state line in the Chautauqua County town of Ripley and passes through Buffalo, Sy ...

and

U.S. Route 62 U.S. Route 62 or U.S. Highway 62 (US 62) runs from the Mexican border at El Paso, Texas, to Niagara Falls, New York, near the Canadian border. It is the only east-west United States Numbered Highway that connects Mexico and Can ...

, Buffalo to Niagara Falls, New York An alternate ran from Washington to Harrisburg via U.S. Route 240 and U.S. Route 15 through

Frederick, Maryland Frederick is a city in and the county seat of Frederick County, Maryland. It is part of the Baltimore–Washington Metropolitan Area. Frederick has long been an important crossroads, located at the intersection of a major north–south Native ...

References

The Susquehanna Trail
(post-1926) Auto trails in the United States Roads in Maryland Transportation in Pennsylvania Transportation in New York (state) U.S. Route 1 U.S. Route 22 U.S. Route 11 U.S. Route 15 U.S. Route 20 U.S. Route 62 {{roadindex