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Narrow Gauge Railroads (USA): History, Mileage & Lines

Last revised: September 3, 2026

Narrow gauge in the United States was a movement, not a leftover from the 1830s. For about fifteen years after 1870, promoters argued that 3-foot track would undercut the 4-foot-8½-inch standard on cost, and they built more than 11,000 miles to prove it. George W. Hilton, in American Narrow Gauge Railroads (Stanford, 1990), showed that the proof was mostly hypothetical. The fever peaked in 1885 at 11,699 miles. By 1900 more than 4,000 of those miles were already gone or converted. What lasted were the isolated feeders: Colorado silver, Pennsylvania coal, Maine timber, Hawaiian sugar, a Yukon gold-rush road. Those are the railroads people still ride.

This page is the national story—origins, the 1870s pitch, why a transcontinental 3-foot network failed, and what survived into the twentieth century. Below that is a growing company directory. Hilton’s Part II is a state-by-state catalog of every U.S. common-carrier narrow-gauge railroad. Dedicated American-Rails articles will be added from that list over time. Logging trams and private woods roads are a different industry; they live on the logging page.

Denver and Rio Grande Western 2-8-2 483 K-36 and helper crossing Lobato Trestle New Mexico with Gramps tank cars toward Cumbres Pass fall 1962

Rio Grande 2-8-2 #483 (K-36), and a helper, cross the Lobato Trestle in New Mexico with Gramps tank cars toward Cumbres Pass, fall 1962. Crude moved from a loading rack at Chama to a refinery at Alamosa—the last serious freight on the San Juan Extension. American-Rails.com collection.

On this page: At a glance · What it was · British and Norwegian origins · American precursors · The 1870s fever · Johnson and the cost argument · Peak mileage · Grand schemes · Decline · What lasted · What you can ride · Company catalog · Related reading

At a glance

Item	Detail
Standard gauge	4 ft 8½ in. The American network was already committed to it by the 1870s
American narrow-gauge convention	3 ft, adopted by the Committee of Eleven at St. Louis, June 19, 1872 (coupler center 24 in. above the rail)
Other U.S. narrow gauges	2 ft (Maine common carriers; Gilpin Tram); 3 ft 4 in. (Pittsburgh & Castle Shannon); 3 ft 6 in. on a few early or isolated roads. Mining and logging trams used whatever fit the tunnel
The book	George W. Hilton, American Narrow Gauge Railroads (Stanford University Press, 1990). Part I is the movement; Part II is every common-carrier company, Alabama through Wisconsin, plus Alaska and Hawaii
U.S. mileage, 1871	97 miles in service
Peak	11,699 miles in 1885 (Hilton). 1882 alone added 2,627 miles
1900	6,733 miles left. 1,345 miles were converted in 1887 alone
1903 / 1946	About 5,761 miles (1903); still more than 1,000 miles immediately after World War II, all isolated short lines or branches
Largest 3-foot system	Denver & Rio Grande, about 1,673 miles in 1887
Why a national 3-foot network failed	Interchange with an already-standard country. Cars were cheaper to build small; they were not cheaper to operate per ton. Promoters used hypothetical costs
Where it worked	Mountains, mines, timber, islands, and other places free from a competing standard-gauge main
Last original eastern common carrier	East Broad Top, freight ended April 14, 1956
Last Rio Grande narrow-gauge freight	San Juan Extension, 1968 (the Gramps oil move in the photograph above)
Last Southern Pacific narrow gauge	Owens Valley (ex–Carson & Colorado), 1960

Mileage and the 1885 peak are Hilton. This hub does not replace his book for a complete company list. Information compiled September 3, 2026.

What narrow gauge was

Gauge is the distance between the inside faces of the rails. Anything under 4 ft 8½ in. is narrow; anything over is broad. American promoters in the 1870s settled on 3 feet as the practical width. They were not inventing small railways. Mine tramways in Europe go back centuries. Gravity roads and quarry lines in Pennsylvania were already hauling coal on gauges well under standard. What was new was the claim that a national 3-foot network could replace, or at least rival, the standard-gauge trunks.

Hilton treated the subject the way he and John Due treated interurbans: as an industry with a boom, a bad cost story, and a long tail of survivors that had nothing to do with the original pitch. The comparison is fair. Both movements sold cheap construction and frequent local service. Both peaked within a generation. Both left a handful of famous remnants and a thick catalog of companies that lasted a decade.

Three things are easy to mix up and should not be:

Common-carrier narrow gauge is Hilton’s subject and this hub’s subject: chartered railroads that hauled public freight and passengers, almost always on 3-foot track, sometimes 2-foot.
Logging and industrial lines used narrow (and standard) gauge as a tool, often without a common-carrier charter. Many never published a timetable. See logging railroads and geared steam.
Heritage and park railways are what most travelers meet today. Some sit on original common-carrier grades (Durango, Cumbres, East Broad Top, White Pass). Some do not.

Britain, Norway, and Robert Fairlie

The modern narrow-gauge movement—the idea that a public railway should be built to less than standard gauge on purpose—started in Britain and was proved in Norway. Carl Abraham Pihl, chief engineer of the Norwegian State Railways, consulted British engineers (notably Sir Charles Fox) and settled on 3 ft 6 in. His first line, 38 kilometers (23.6 miles) between Hamar and Elverum, opened June 23, 1862. A second, 49 kilometers (30.5 miles) between Trondheim and Storen, opened August 5, 1864. Fox himself built a 3 ft 6 in. line in India, 16 miles from Arconum Junction (Arakkonam) to Conjeveram (Kanchipuram), opened May 1865. Queensland opened its own 3 ft 6 in. railway on July 31, 1865, 20 miles from Ipswich to Grandchester—another Fox job. Those roads worked. They also sat alone. Nothing of a competing gauge touched them.

Robert F. Fairlie (1831–1885) turned that colonial success into a pamphlet war. He had been on the London & North Western and, in 1853–54, chief engineer and general manager of the Londonderry & Coleraine. By the 1860s he was a consulting engineer convinced that standard-gauge locomotives carried too many unpowered axles and that standard-gauge cars were too heavy for the lading they hauled. He patented a double-bogie, double-boiler engine (the Fairlie type, 0-4+4-0) in 1864–65. A batch of 0-6+6-0 Fairlies for Queensland was a failure. The design that made his name was not that engine, and it was not the first steam on a narrow-gauge railway.

The Ffestiniog Railway in Wales had opened April 20, 1836 as a horse-and-gravity slate tramway from Blaenau Ffestiniog to Porthmadog. Steam arrived in October 1863 with George England 0-4-0 tank engines (Princess, Mountaineer, then Prince and Palmerston). The first official steam train ran October 23, 1863. Fairlie’s Little Wonder did not go to work there until 1869. It doubled the power of the England engines and became the demonstration piece Fairlie needed. He settled on 3 feet as the practical gauge and, on September 19, 1870, read “On The Gauge For The Railways Of The Future” to the British Association at Liverpool. Railway Gazette reprinted it on October 15. That paper, and William J. Palmer’s Denver charter eight days later, are the two dates Hilton treats as the start of the American fever.

Rio Grande Southern 2-8-0 number 42 C-17 at Alamosa Colorado on the Denver and Rio Grande Western 1952 Robert LeMassena

Rio Grande Southern 2-8-0 #42 (C-17) at Alamosa on the Denver & Rio Grande Western, 1952. The Southern had quit the year before. Robert LeMassena photo. American-Rails.com collection.

America already had small gauges

The United States did not discover narrow gauge in 1870. The Mauch Chunk, Summit Hill & Switchback Railroad, a Lehigh Coal & Navigation operation, had been moving anthracite on a 3 ft 6 in. mule-and-gravity road since May 5, 1827. Nine miles: mules up, gravity down. Inclined planes went in in 1844. In 1870 it became a tourist attraction. The Delaware & Hudson Canal Company’s railroad from the mines toward Honesdale was 4 ft 3 in. Hilton notes that the Baltimore & Ohio was planned at 4 ft 6 in.; after engineers visited England in 1829 they adopted 4 ft 8½ in. for clearance inside the frames of inside-connected locomotives, and that gauge was in use by the early 1830s. Early American practice was a scatter: 4 ft 8½ in. where British iron and British engines set the pattern, 4 ft 10 in. in Ohio, 5 ft in much of the South, 6 ft on the Erie. Standard gauge won the West because the 1863 Pacific Railroad gauge act said so, and it won the East because the biggest roads already had it.

That last fact is what doomed a national 3-foot system before the first convention met. Promoters used hypothetical construction and operating costs. Few of them had run a railroad. Where narrow gauge had already succeeded, they ignored the setting: an isolated tramway, a mine, a colony, or a mountain district with no standard-gauge competitor at the next town.

Denver and Rio Grande Western narrow-gauge steam derrick OP at Alamosa Colorado September 1944

Rio Grande narrow-gauge steam derrick OP at Alamosa, Colorado, September 1944. A 3-foot railroad that lasted long enough needed a wrecker of its own. American-Rails.com collection.

Palmer, Hulbert, and the conventions

Two events in the fall of 1870 set the American movement going. Fairlie read his Liverpool paper on September 19. General William J. Palmer chartered the Denver & Rio Grande Railway on October 27, 1870. Construction began July 28, 1871. Palmer meant to reach El Paso via Veta Pass and Alamosa, and Salt Lake via Grand Junction, and to tap southwestern Colorado silver. He lost Raton Pass to the Atchison, Topeka & Santa Fe and never reached Texas. He did build the only 3-foot system that ever looked like a regional trunk. At its 1887 peak the Rio Grande claimed about 1,673 miles of narrow gauge. The Rio Grande history is that railroad. This page is why so many other people copied the gauge and not the geography.

In the Southeast, Col. Edward Hulbert did the pamphleteering. He had entered the business in 1848 as a freight clerk on the Atlanta & West Point and was superintendent of the Western & Atlantic by 1868. He spoke on narrow gauge on February 14, 1871 and published The Narrow Gauge Railway that August. Opponents dismissed it as a restatement of Fairlie. It still sold the idea.

A National Narrow-Gauge Railway Convention met at the Southern Hotel in St. Louis on June 19, 1872. A second met at the Lookout House in Cincinnati on July 17–18, 1878. The St. Louis “Committee of Eleven” is the one that matters: principal gauge 3 feet, coupler center 24 inches above the rail. That is why American narrow gauge is 3-foot unless a caption says otherwise. In 1871 there were 97 miles in service. By 1875 there were 1,474. The Panic of 1873 slowed building; it did not stop it. By 1880 there were about 6,200 miles.

Denver and Rio Grande Western 2-8-2 498 K-37 eastbound on the narrow-gauge San Juan Extension east of Durango Colorado summer 1968

Rio Grande 2-8-2 #498 (K-37) eastbound on the San Juan Extension east of Durango, summer 1968, near the end of freight. The K-37s were standard-gauge class 190 consolidations rebuilt as narrow-gauge 2-8-2s. American-Rails.com collection.

The cost argument, from a man who ran one

Critics were already in print before the 1880s boom. Matthias Nace Forney of the Railroad Gazette, Benjamin H. Latrobe (early Baltimore & Ohio chief engineer), and Silas Seymour (Erie construction) all said the savings were overstated. The testimony Hilton leans on is Lorenzo M. Johnson, general manager of the Cairo & St. Louis. That road was chartered in 1865 to link Cairo, Illinois, on the Illinois Central, with St. Louis. Opened March 1, 1875, it was then the longest 3-foot railroad in the country at about 150 miles. It had coal. It made money by the standards of the fever. Johnson still thought the gauge was a bad investment.

In the September 1878 Scribner’s Monthly, in “Are Narrow-Gauge Roads Economical?,” he put dollars against the pamphlets:

The labor involved in the construction of a narrow gauge coach is very nearly the same as that required to construct a standard gauge coach, although the quantity of materials required will be less. … It will be obvious that three narrow gauge coaches will cost as much as two standard gauge coaches.

Very little is saved in the equipment of a narrow gauge road with locomotive power, for a small engine will not do so much work in proportion to its cost as a large engine, and a million tons of freight can be hauled over any road with less cost for motive power with a large engine of a standard gauge road than with a small engine of a narrow gauge road. More engines will be required … the lighter engines do not execute their work so satisfactorily, as they get out of order more frequently.

Let any man who is seeking for investment of capital in railway construction, consult those who have operated both classes of roads, and he will be advised, almost invariably, that he will save very little in cost of construction, equipment, and operation, and that he will lose business from competition, if he adopts the narrow gauge.

Hilton’s later arithmetic agrees with Johnson. Labor to spike a mile of 3-foot track is not half the labor to spike a mile of standard. Earthwork is not half. A 3-foot car is cheaper than a standard-gauge car and carries less. At a break-of-gauge, every ton is handled twice. That transfer is the tax the pamphlets left out. Baldwin still sold the locomotives. Hilton’s builder table for 3-foot common-carrier engines, 1870–90, gives Baldwin 561 of 1,408 known locomotives—about 40 percent. Brooks, Porter, Grant, and Mason (the Mason Bogie) took most of the rest. Fairlie types were a curiosity in the United States. The Mexican National used them; American 3-foot roads bought Moguls, Consolidations, and, later on the Rio Grande, Mikados.

Peak years

Johnson did not slow the boom. Mileage passed 10,000 in 1883 and peaked at 11,699 in 1885. Most of the roads that actually opened were under 100 miles. The 3-foot map was a spray of short lines, not a shadow of the Pennsylvania or the Union Pacific.

Year	Narrow-gauge miles (Hilton)	Notes
1871	97	Palmer’s railroad just underway
1875	1,474	Cairo & St. Louis open; conventions in session
1880	~6,200	After the 1873 panic
1882	—	2,627 miles built in a single year
1883	>10,000
1885	11,699	Peak
1887	—	1,345 miles converted in one year; D&RG near its 3-foot maximum
1889	9,705
1900	6,733
1903	5,761
1946	>1,000	Scattered short lines and branches

Eureka and Palisade 4-4-0 number 4 Baldwin 1875 between photo runs on the Durango and Silverton August 1999 Jerry Weisman

Eureka & Palisade 4-4-0 #4, Baldwin, July 1875, between photo-charter runs on the Durango & Silverton, August 1999. Privately owned; later based in the Las Vegas area. Jerry Weisman photo. American-Rails.com collection.

A transcontinental that was never going to happen

Two paper systems get most of the space in the old literature. Neither came close to an ocean-to-ocean 3-foot railroad. Palmer’s Denver & Rio Grande was supposed to sit in both of them as a Rocky Mountain link. He had not designed it that way. He wanted a north–south railroad from Denver toward Mexico, with a western arm to Utah.

Maj. Peter B. Borst chartered the Washington, Cincinnati & St. Louis on March 15, 1871 to connect the cities in the title. West of St. Louis the idea was to meet the St. Louis & Leavenworth Narrow-Gauge and the Kansas Central (Leavenworth toward Denver), then ride Palmer to Utah. Borst never explained the Pacific beyond that. Little of it was built.

The so-called Grand Narrow Gauge Trunk was more curious: it was never even projected coast to coast. Three U.S. companies were to run from Ohio to the Rio Grande—the Toledo, Cincinnati & St. Louis (Toledo–St. Louis); the St. Louis & Cairo; and the Texas & St. Louis (Cairo toward Laredo)—and interchange there with the Mexican National for 803 miles to Mexico City. On paper the four added up to 2,445 miles. On the ground the Texas & St. Louis is the piece that mattered. Jay Gould took it, standard-gauged it in 1886, and it became the St. Louis Southwestern (Cotton Belt). The trunk idea died. The railroad did not.

Denver and Rio Grande Western 2-8-2 483 K-36 and helper shoving empties over Cumbres Pass

Rio Grande 2-8-2 #483 (K-36) and a mate shoving empties over Cumbres Pass. Date not recorded. Helper district, 10,015 feet, 3-foot track: this is the work the fever actually justified. American-Rails.com collection.

Decline

By the late 1880s the national-network talk was over. Standard gauge had the capital, the shops, and the interchange. The 3-foot mileage that paid was the mileage that behaved like a branch: a coal dump, a silver camp, a timber mill, a plantation, an island. Trunk lines that had built or bought 3-foot feeders dual-gauged them or converted them. The Baltimore & Ohio, Milwaukee Road, and Union Pacific all inherited three-foot appendages and spent the next generation getting rid of the break of gauge. Union Pacific’s Utah & Northern, which had opened Montana to Ogden on 3-foot rail, was converted in large bites in 1887 and 1890 and remains a UP main. That is Hilton’s irony in one company: the successful narrow-gauge road is often the one that ceased to be narrow gauge.

Conversion was cheaper than the pamphlets had implied for construction, and more urgent than they had admitted for traffic. Bridges were widened, standard-gauge ties went in under the 3-foot rails, and one rail was thrown over on a chosen day. What could not be converted cheaply was abandoned. What could not be abandoned because the mountain still paid was left alone until the ore, the coal, or the timber ran out.

What lasted into the twentieth century

A short list of independent or semi-independent 3-foot (and 2-foot) roads ran well past 1900. They are famous because they were leftovers, not because the fever had been right.

Denver & Rio Grande Western kept a 3-foot network in the San Juans after the Denver–Ogden main was standard-gauged. The San Juan passenger train lasted until 1951. Freight on the Alamosa–Durango–Farmington line lasted until 1968. The Silverton Branch became the Durango & Silverton. The Cumbres Pass line became the Cumbres & Toltec in 1970.
Rio Grande Southern (Ridgway–Durango, Otto Mears) hung on with the Galloping Geese until 1951.
East Broad Top hauled Broad Top Mountain coal to a Pennsylvania Railroad interchange at Mount Union until April 14, 1956—the last original common-carrier 3-foot railroad east of the Mississippi. Tourist trains began in 1960. The East Broad Top Foundation bought the property in February 2020.
East Tennessee & Western North Carolina (“Tweetsie”) ran Johnson City–Cranberry until 1950. Locomotive #12 went to the Tweetsie Railroad park at Blowing Rock in 1957.
Uintah Railway climbed Baxter Pass on grades up to about 7.5 percent with Baldwin 2-6-6-2s until 1939.
White Pass & Yukon, built 1898–1900 for the Klondike, is still 3-foot, Skagway into the Yukon.
Oahu Railway & Land and the other Hawaiian 3-foot plantation roads had no standard-gauge competitor. Oahu’s common-carrier freight lasted into 1947.
Southern Pacific’s Owens Valley line (ex–Carson & Colorado) ran until 1960.
Maine’s two-footers—Sandy River & Rangeley Lakes and its predecessors, Bridgton & Saco River / Bridgton & Harrison, Wiscasset, Waterville & Farmington, Monson, Kennebec Central—were common carriers, not woods trams. The last of them quit in the 1930s and early 1940s. The WW&F Railway Museum is putting a piece of that gauge back in the ground.

Denver and Rio Grande Western 2-8-2 491 K-37 taking water at Alamosa Colorado 1960s

Rio Grande 2-8-2 #491 (K-37) taking water at Alamosa in the 1960s. The standard-gauge connection was in the same yard; every ton that stayed on 3-foot rail past this spout did so because the mountain still paid. American-Rails.com collection.

What you can still ride

The fever’s afterlife is tourism. That is not a slight. Several of the surviving operations are the original companies’ grades, shops, and locomotives. For tickets and seasons use the state tourist guides; this table is the heritage map.

Operation	Gauge / ancestor	Where
Durango & Silverton	3 ft / D&RG Silverton Branch	Colorado scenic trains
Cumbres & Toltec Scenic	3 ft / D&RG San Juan Extension (Cumbres Pass)	Antonito, Colo.–Chama, N.M. · Colorado guide
Georgetown Loop	3 ft / Colorado Central, C&S	Georgetown / Silver Plume · Colorado guide
East Broad Top	3 ft / original common carrier	Rockhill Furnace, Pa. · restoration 2026 · Pennsylvania trains
Tweetsie Railroad	3 ft / ET&WNC #12 and mountain-park operation	Blowing Rock, N.C.
White Pass & Yukon	3 ft / original 1898–1900 line	Skagway, Alaska
WW&F Railway Museum	2 ft / Wiscasset, Waterville & Farmington	Alna, Maine · Maine trains

Park and museum 3-foot and 2-foot operations (Roaring Camp, Yosemite Mountain Sugar Pine, Huckleberry Railroad, Midwest Central, Edaville, and others) are listed on the relevant state tourist pages. They are not Hilton common carriers.

Railfans on the rear platform of the parlor-observation on Denver and Rio Grande Western train 115 San Juan Express at Alamosa Colorado morning of December 31 1949

Rear platform of the parlor-observation on train 115, the San Juan Express, Alamosa, morning of December 31, 1949. The train itself lasted until 1951. American-Rails.com collection.

Company catalog (growing)

Hilton’s Part II is the complete roster of U.S. common-carrier narrow-gauge railroads. This site already has full articles on a first group. The regional tables below add the companies most readers look for—linked when a page exists, named when it does not. Unlinked names are placeholders for future articles, not missing URLs. Logging-only operations stay on the logging hub.

Articles already on American-Rails.com

Denver & Rio Grande / Denver & Rio Grande Western
Denver, South Park & Pacific (“The South Park Line”)
Colorado Central
Rio Grande Southern
East Broad Top · restoration · Baldwin Mikados
East Tennessee & Western North Carolina (“Tweetsie”) · Tweetsie Railroad (park)
Uintah Railway
White Pass & Yukon Route
WW&F Railway Museum (Maine 2-foot revival)
Cotton Belt (St. Louis Southwestern) — standard-gauge successor of the Texas & St. Louis 3-foot road

Colorado and the San Juans

Colorado had the densest 3-foot web in the country. Silver, not the pamphlets, paid for it. Hilton’s Colorado chapter is long for a reason; the table is a start, not the chapter.

Railroad	Gauge	Notes
Denver & Rio Grande	3 ft	Palmer, 1870. Peak ~1,673 miles (1887). Main line converted; San Juan 3-foot freight to 1968
Denver, South Park & Pacific	3 ft	Alpine Tunnel (1882; closed 1910). Became Colorado & Southern South Park; abandoned 1937–38
Colorado Central	3 ft	Golden–Central City / Georgetown. Georgetown Loop 1884; later C&S; Loop rebuilt as a tourist road
Rio Grande Southern	3 ft	Otto Mears, Ridgway–Durango. Galloping Geese. Abandoned 1951
Florence & Cripple Creek	3 ft	Phantom Canyon into the Cripple Creek district, 1890s; washed out / abandoned 1910s
Gilpin Tram	2 ft	Central City ore tram, 1887–1917. Not a Maine two-footer, but the same gauge
Crystal River	3 ft	Marble and coal off the D&RG near Carbondale
Argentine Central	3 ft	Georgetown to Waldorf / Mt. McClellan; Shays; 1906–1918
Colorado & Northwestern (Switzerland Trail)	3 ft	Boulder Canyon / Ward / Eldora; later Denver, Boulder & Western
Rio Grande Western (Utah lines in the mountains)	3 ft then std	Palmer’s Utah subsidiary; Denver–Ogden converted 1889–90. See Utah table

Utah, Nevada, California, Arizona

Railroad	Gauge	Notes
Uintah Railway	3 ft	Baxter Pass, Colorado–Utah; 7.5% grades; 2-6-6-2s; 1904–1939
Utah & Northern	3 ft then std	Ogden toward Butte. Gould / Union Pacific. Converted 1887 (Pocatello–Butte) and 1890 (south end). Still a UP line
Utah & Pleasant Valley / Bingham Canyon & Camp Floyd / Wasatch & Jordan Valley	3 ft then std	Scofield coal and Bingham metal; absorbed into D&RGW. Hilton’s Utah chapter
San Pete Valley	3 ft then std	Nephi into the San Pitch / Sevier country; converted 1896; later D&RG
Carson & Colorado (SP narrow gauge)	3 ft	Mound House, Nev., into the Owens Valley. SP after 1900; last Keeler–Laws, 1960
Eureka & Palisade / Eureka-Nevada	3 ft	Eureka mines to the Central Pacific at Palisade, 1875. Baldwin 4-4-0 #4 survives (photograph above). Quit 1938
Nevada Central	3 ft	Battle Mountain–Austin, 1880–1938
Nevada County Narrow Gauge	3 ft	Colfax–Grass Valley–Nevada City, 1876–1942. “Never Come, Never Go”
Pacific Coast Railway	3 ft	San Luis Obispo / Port Harford. Hilton California
North Pacific Coast (later NWP narrow gauge)	3 ft	Sausalito into Marin and Sonoma redwoods; converted / standard-gauged in pieces
Arizona & New Mexico; Clifton & Lordsburg district roads	3 ft then std	Copper. Converted around 1901

Maine two-footers

Maine built a 2-foot common-carrier network unique in North America. Hilton covers the companies as common carriers, not as logging curiosities, even though timber was the freight. Equipment from the Sandy River system later ran at Edaville in Massachusetts.

Railroad	Gauge	Notes
Sandy River & Rangeley Lakes (and predecessors: Sandy River; Phillips & Rangeley; Franklin & Megantic; Madrid)	2 ft	The big system, Farmington into Franklin County. Last train 1935
Bridgton & Saco River / Bridgton & Harrison	2 ft	Bridgton to the Maine Central at Bridgton Junction. Last 1941
Wiscasset, Waterville & Farmington	2 ft	Sheepscot Valley. Original common carrier quit 1933. Museum revival at Alna
Monson	2 ft	Slate. Last of the Maine two-foot common carriers, 1943
Kennebec Central	2 ft	Randolph–Togus (National Home for Disabled Volunteer Soldiers). Abandoned 1929

East and Appalachia

Railroad	Gauge	Notes
East Broad Top	3 ft	Chartered 1856; operated 1873–1956. Coal to Mount Union. Foundation revival from 2020
East Tennessee & Western North Carolina	3 ft	Johnson City–Cranberry iron and timber. Freight ended 1950
Ohio River & Western	3 ft	Southeastern Ohio. Later a B&O appendage; abandoned 1930s
Waynesburg & Washington	3 ft	Pennsylvania; PRR subsidiary. Passenger 3-foot into the 1920s
Boston, Revere Beach & Lynn	3 ft	Suburban; later electrified. Last 1940. Not a mountain road
Pittsburgh & Castle Shannon	3 ft 4 in.	South Hills coal and suburban, from 1871. Dual-gauged under Pittsburgh Railways; Hilton Pennsylvania
Tionesta Valley / Sheffield & Tionesta	3 ft	Pennsylvania timber common carriers; Hilton
Mauch Chunk Switchback	3 ft 6 in.	1827 gravity road; tourist from 1870. Precursor, not 1870s fever

Midwest, South, and the trunk remnants

Railroad	Gauge	Notes
Cairo & St. Louis / St. Louis & Cairo	3 ft	Johnson’s railroad. Coal. Later Mobile & Ohio; converted
Toledo, Cincinnati & St. Louis	3 ft	Ohio–Indiana piece of the Grand Narrow Gauge Trunk. Failed as a 3-foot project
Texas & St. Louis → Cotton Belt	3 ft then std	Gould; standard-gauged 1886. The trunk’s only real corporate survivor
Kansas Central	3 ft then std	Leavenworth westward; Union Pacific. Borst’s paper transcontinental needed it
Anniston & Atlantic and Alabama mineral roads	3 ft then std	Hilton Alabama. Converted in the 1890s
Iowa and Missouri 3-foot shorts	3 ft	Numerous; most converted or abandoned before 1900. Hilton’s Midwest chapters are the list

Alaska and Hawaii

Railroad	Gauge	Notes
White Pass & Yukon	3 ft	Skagway–Whitehorse, 1898–1900. Still operating
Oahu Railway & Land	3 ft	Dillingham; Honolulu around Oahu. Common-carrier freight into 1947
Kahului; Hawaii Consolidated; other island plantation roads	3 ft	Sugar. Isolated by ocean, which is why 3-foot lasted. Hilton Hawaii

Hilton did not stop at the famous names. Ohio, Pennsylvania, Georgia, North Carolina, Texas, and California each had dozens of short 3-foot companies that opened, lost money, and converted or vanished between 1878 and 1900. Those entries will appear here as dedicated pages are written. Until then his book is the index.

U.S. railroad history
Denver & Rio Grande Western
Logging railroads
Geared steam (Shay, Heisler, Climax)
Interurbans (Hilton’s other American dead-end industry)
Tourist trains · Colorado · Maine · Pennsylvania
Fallen flags
Railroad history books

Sources

George W. Hilton, American Narrow Gauge Railroads (Stanford: Stanford University Press, 1990). Mileage table (peak 11,699 miles in 1885; 2,627 miles built in 1882; 1,345 converted in 1887; 5,761 remaining in 1903); Committee of Eleven; Fairlie; D&RG 1,673 miles; builder table 5.2 (Baldwin 561 of 1,408 three-foot common-carrier locomotives, 1870–90); Part II company catalog
Lorenzo M. Johnson, “Are Narrow-Gauge Roads Economical?,” Scribner’s Monthly, September 1878
Robert F. Fairlie, “On The Gauge For The Railways Of The Future,” British Association for the Advancement of Science, Liverpool, September 19, 1870; reprinted Railway Gazette, October 15, 1870
Edward Hulbert, The Narrow Gauge Railway (August 1871)
Norges Jernbaner, 1958–1959 (Pihl; Hamar–Elverum 1862; Trondheim–Storen 1864)
Ffestiniog Railway: England locomotives in steam October 1863 (first official train October 23); Fairlie Little Wonder 1869
Douglas J. Puffert, Tracks across Continents, Paths through History: The Economic Dynamics of Standardization in Railway Gauge (Chicago: University of Chicago Press, 2009): B&O planned 4 ft 6 in., adopted 4 ft 8½ in. after the 1829 England visit
Robert A. LeMassena, Rio Grande … to the Pacific! (Sundance, 1974)
Mallory Hope Ferrell, Utah & Northern, Colorado Rail Annual No. 15 (Colorado Railroad Museum, 1981)
East Broad Top Foundation / American-Rails EBT pages: common-carrier freight ended April 14, 1956; Foundation purchase February 2020

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