The East Broad Top Railroad and Coal Company (EBT) is a for-profit, narrow gauge historic railroad headquartered in Rockhill Furnace, Pennsylvania, 19 mi north of Interstate 76 (the Pennsylvania Turnpike) and 11 mi south of U.S. Route 22, the William Penn Highway.
Elmwood Historic District–West is a national historic district located at Buffalo, Erie County, New York.
 The district encompasses 1,971 contributing buildings, 4 contributing structures, and 13 contributing objects in the Elmwood Village neighborhood of Buffalo.
 It is built around the Buffalo Parks and Parkways system bounded on the north by Delaware Park, Forest Lawn Cemetery, and the former Buffalo State Asylum, on the south by the Allentown Historic District, and on the east by the Elmwood Historic District–East.
 This predominantly residential district developed between about 1867 and 1941, and includes notable examples of Queen Anne, Shingle Style, Colonial Revival, Tudor Revival, and American Craftsman style architecture.
 The district contains one of the most intact collections of built resources from turn of the 20th century in the city of Buffalo and western New York State.
 Located in the district are six previously listed contributing resources including the Richmond Avenue Methodist-Episcopal Church and the Buffalo Tennis and Squash Club.
 Other notable building include the H.C. Gerber House (1908), the Fred Dullard House (1910), the William H. Scott House (1904), St. John’s-Grace Episcopal Church designed by Bertram Grosvenor Goodhue (1925–26), Davidson House (1885), former Jehle Grocery Store and Residence (c. 1886, 1899), St. Luke’s Episcopal Church (now Symphony Bible Church, 1886, 1893), Temple Beth El (now Greater Emmanuel Temple Church, Inc., 1910-1911), Richmond Avenue Church of Christ (now Bryant Parish Condominiums (c. 1885-1887), and Pilgrim-St.
 Luke’s United Church of Christ (1911).
The Calumet Downtown Historic District is a historic district located in Calumet, Michigan, on 5th Street and 6th Street, between Scott Street and Pine Street.
 It is also known as the Red Jacket Downtown Historic District, reflecting the original name of the village.
 The Historic District is completely contained in the Calumet Historic District (a National Historic Landmark District) and the Keweenaw National Historical Park.
 It was designated a Michigan State Historic Site in 1973 and listed on the National Register of Historic Places in 1974.
The Highland Historic District is a nationally recognized historic district located in Waterloo, Iowa, United States.
 It was listed on the National Register of Historic Places in 1984.
 Because of industrial growth the city's population doubled between 1890 and 1900, and then again between 1900 and 1910.
 The housing development named the Highlands was developed during this period of economic growth.
 John Steely, a real estate broker, and Lewis Lichty, an attorney who owned the Waterloo Canning Company, bought the property known as sandhill in 1901, and opened an office for the Highland Land Company in the Century Building in 1905.
 The historic district is all residential buildings.
 The oldest house predates the development having been built in 1900.
 Otherwise construction began in the center of the district in 1908 and moved outward.
 By 1942 all but 15 houses were built.
 They are all frame construction with exteriors composed of wood, stucco, brick and stone.
 Styles popular in the district include Colonial Revival, Tudor Revival and American Craftsman.
 Waterloo architect Mortimer B. Cleveland is responsible for designing at least 39 of the houses here.
 Chicago landscape architect Howard Evarts Weed designed the Square and boulevard plantings.
 This was Waterloo's first suburban residential development.
 It became the enclave for the city's industrial and professional elite in the first half of the 20th century.
Woodvale Historic District is a national historic district located at Broad Top Township, Bedford County; Wells Township, Fulton County; and Wood Township, Huntingdon County, Pennsylvania.
 The district includes 79 contributing buildings, 1 contributing site, and 2 contributing structures in the coal mining community of Woodvale.
 The buildings date between about 1890 and 1942, and include industrial buildings, institutional buildings, and vernacular worker's housing.
 They were built by the Rockhill Iron and Coal Company.
 Non-residential buildings include the Methodist Church (1911), St. Michael's Greek Orthodox Church (1930s), a social hall, a mule barn, power house, railroad machine shop (1918), and post office (1919).
Avery Street Historic District, is a national historic district located at Parkersburg, Wood County, West Virginia.
 It is to the east of the Julia-Ann Square Historic District and south of the Parkersburg High School-Washington Avenue Historic District.
 Primarily residential, it encompasses 109 acres and includes churches, a school, and a small commercial area.
 Built as Parkersburg's first "suburb" in the late-19th and early-20th century in popular architectural style such as Colonial Revival and Queen Anne, the district exhibits 12 distinctive types of Historic architecture.
 There are 358 contributing buildings, 59 of which are considered to be pivotal.
 U.S. Senator Johnson N. Camden (1826-1908) owned most of the land now included in the district.
 Located in the district are the separately listed Parkersburg Women's Club and the First Presbyterian Church/Calvary Temple Evangelical Church.
Rolling Mill Historic District is a national historic district located at Cumberland, Allegany County, Maryland.
 It is a 38 acre primarily residential historic district located on the east side of the city of Cumberland.
 It contains a strong, locally distinctive concentration of wood and brick residences built between the early 1870s and the late 1940s.
 It also includes a modest commercial area.
 The district has a total of 173 properties, including the previously listed Francis Haley House.
The Caldwell County Courthouse Historic District is a historic district located in Lockhart, Texas, the seat of Caldwell County.
 The historic district encompasses 67 buildings on 250 acre across downtown Lockhart.
 One building included in the historic district, the Emmanuel Episcopal Church, was previously listed on the National Register of Historic Places in 1974.
 The historic district was added to the National Register of Historic Places on January 3, 1978.
Elmwood Historic District–East is a national historic district located at Buffalo, Erie County, New York.
 The district encompasses 2,405 contributing buildings, 31 contributing structures, and 14 contributing objects in the Elmwood Village neighborhood of Buffalo.
 It is bounded on the north by Delaware Park, Forest Lawn Cemetery, and the former Buffalo State Asylum, on the south by the Allentown Historic District, and on the west by the Elmwood Historic District–West.
 This predominantly residential district developed between about 1867 and 1965, and includes notable examples of Queen Anne, Shingle Style, Colonial Revival, Tudor Revival, and American Craftsman style architecture.
 The district contains one of the most intact collections of built resources from turn of the 20th century in the city of Buffalo and western New York State.
 Located in the district are 17 previously listed contributing resources including the Buffalo Seminary, Garret Club, James and Fanny How House, Edgar W. Howell House, Edwin M. and Emily S. Johnston House, Col. William Kelly House, Lafayette Avenue Presbyterian Church, Parke Apartments, and the Unitarian Universalist Church of Buffalo.
 Other notable building include the Frank Lloyd Wright designed William R. Heath House (1904-1905), Herbert H. Hewitt House (c. 1898), School 56 (1910-1911), the Harlow House (c. 1892), A. Conger Goodyear house (c. 1908), Alexander Main Curtiss House (now the Ronald McDonald House, 1895), Nardin Academy campus (c. 1914), and Coatsworth House (1897).
The Fifth and Main Historic District is a collection of adjoining structures and national historic district located on the northeast corner of the intersection of Main and Fifth streets in Joplin, Jasper County, Missouri, United States.
 This historic district consists of three early 20th century structures: the Christman Building, the Christman Building Annex and the Paramount Building.
 The Fifth and Main Historic District was added to the National Register of Historic Places in 2006.
 In 2008, it was encompassed by the Joplin Downtown Historic District.

Question: Where is the company that built Woodvale Historic District located?
Answer: Rockhill Furnace, Pennsylvania