Question: The Church of St. Martin in Landshut is a medieval church in the German city located in the state of Bavaria, it is also the 2nd tallest brick structure in the world (after Anaconda Smelter Stack), made without steel supports, the Anaconda Smelter Stack is a brick smoke stack, once part of the smelter of which organization, at Anaconda, Montana in the United States?
Context: Barree Forge and Furnace, now known as Greene Hills Methodist Camp, is a national historic district located at Porter Township in Huntingdon County, Pennsylvania.  It consists of two contributing buildings, one contributing site, and one contributing structure associated with a former ironworks.  They are the ironmaster's mansion, furnace stack, a barn, and the site of the Barree iron forge built about 1797.  The ironmaster's mansion was built in the 1830s, and is a 2 1/2-story brick house painted white.  The furnace stack dates to 1864, and is a 30-foot square, coursed limestone structure.  It measures between 6 and 15 feet tall.  The ironworks closed in the 1880s.  The property was acquired in 1963, by the United Methodist Church for use as a church camp. Fore Shoe Company Building, also known as the Washington Shoe Company Building and Kane Dunham & Kraus Shoe Company Building, is a historic shoe factory building located at Washington, Franklin County, Missouri.  The original section was built in 1925, and is a two-story, reinforced concrete and wood beam structure sheathed in brick.  A two- and three-story brick addition was built in 1927, and is of steel frame construction.  The building features a prominent brick smoke stack and measures approximately 58,000 square feet of floor space.  The factory closed in 1971. The Beaverhead-Deerlodge National Forest is the largest of the National Forests in Montana, United States.  Covering 3.36 e6acre , the forest is broken into nine separate sections and stretches across eight counties in the southwestern area of the state.  President Theodore Roosevelt named the two forests in 1908 and they were merged in 1996.  Forest headquarters are located in Dillon, Montana.  In Roosevelt's original legislation, the Deerlodge National Forest was called the Big Hole Forest Reserve.  He created this reserve because the Anaconda Copper Mining Company, based in Butte, Montana, had begun to clearcut the upper Big Hole River watershed.  The subsequent erosion, exacerbated by smoke pollution from the Anaconda smelter, was devastating the region.  Ranchers and conservationists alike complained to Roosevelt, who made several trips to the area. The Anaconda Smelter Stack is a brick smoke stack, once part of the smelter of the Anaconda Copper Mining Company at Anaconda, Montana in the United States.  The stack is 585 ft tall, excluding its foundation. Becker–Westfall House, also known as Westfall House, is a historic home and tavern located at Schoharie in Schoharie County, New York, United States.  It is a brick structure built in 1784, with a two-story, three-bay rectangular block and a one-story, three-bay wing.  Also on the property is a brick smoke house, garage, barn, and a cow stable. Forest City is a ghost town in Utah County, Utah, United States.  It is located in the valley of Dutchman Flat in the upper part of American Fork Canyon, in the Uinta National Forest.  A silver mining town just over the mountain from Alta, Forest City was inhabited about 1871–1880.  The town grew up around the smelter that was built to process ore from the canyon's mines.  The American Fork Railroad, which was intended to serve Forest City and the smelter, stopped short of its destination due to engineering difficulties.  Transportation costs rose too high for the mines to continue operating profitably.  As the smelter, mines, and railroad closed down, Forest City was abandoned. Landshut (Bayern) Hauptbahnhof is the main railway station in Landshut in the German State of Bavaria.  There is also the halt ("Haltepunkt") of "Landshut (Bay) Süd" (Landshut south) on the Neumarkt-Sankt Veit – Landshut railway.  The Hauptbahnhof has seven platforms tracks and is classified by Deutsche Bahn as a category 2 station.  It is used daily by about 120 trains operated by DB Regio, Regentalbahn and Agilis.  Landshut is on the Munich–Regensburg, Munich–Landshut–Passau and Landshut–Mühldorf lines.  In addition, the station is located on the Landshut Neuhausen museum line. St. James the Less Roman Catholic Church, also known as St. James and St. John's Roman Catholic Church, is a historic Roman Catholic church located at Baltimore, Maryland, United States and was one of the earliest neighborhood parishes established in the central city (1833).  It is a High Victorian Gothic influenced brick structure with Romanesque Revival overtones built 1865-67.  It has a tall central tower and featured an ornate interior with marble sculpture and murals.  The church is 184 feet long, 65 feet wide, and the ceiling is 51 feet from the floor.  The steeple, at 256 feet, is the second tallest church tower in the city (next to First and Franklin Street Presbyterian Church at West Madison Street and Park Avenue, in Mount Vernon-Belveere neighborhood, constructed 1875), which dominates Old East Baltimore.  The cross surmounting the spire, is 10 feet tall.  There is a peal of four bells in the tower, the largest weighing 5000 pounds, cast by McShane of Baltimore, in 1885.  The tower clock was installed during the same year.  The magnificent and priceless 25 foot-high Mayer windows were installed in 1891.  The church is an early work of George A. Frederick (1842-1924), a prolific and prominent architect in Baltimore who designed various buildings in the city including the Baltimore City Hall in 1875.  The interior features three large interior murals painted about 1886 by the German-born artist William Lamprecht and marble sculpture work by the Baltimore sculptor Joseph Martin Sudsburg.  In 1966, the neighbouring parish of St. John the Evangelist was closed, and the new parish of St. James and St. John, was formed, the congregation worshipping at St. James.  The parish was dissolved around 1986, and the former St. James Church was sold to an evangelical church.  Most regrettably, the church has been stripped of its windows, altars, marble communion rail, pipe organ, and other artifacts, and the church has been whitewashed, destroying its beautiful and historic murals. The Church of St. Martin in Landshut is a medieval church in the German city located in the state of Bavaria.  St. Martin's Church, along with Trausnitz Castle and the celebration of the Landshuter Hochzeit (wedding), are the most important landmarks and historical events of Landshut.  This Brick Gothic landmark is the tallest church in Bavaria, and the tallest brick building as well as church in the world.  It is also the 2nd tallest brick structure in the world (after Anaconda Smelter Stack), made without steel supports.  St. Martin's church has a height of 130.6 m . The Torrazzo is the bell tower of the Cathedral of Cremona, Lombardy, in northern Italy.  At 112.7 metres (343 ft 6 in), it is the third tallest brickwork bell tower in the world, the first being the tower of St. Martin's Church in Landshut, Bavaria, and the second at the Church of Our Lady in Bruges, Belgium.  However the Torrazzo (completed in 1309) is older than the Landshut tower (completed in 1500) and the Bruges tower (completed in 1465), and it is the oldest brick structure taller than 100 m that is still standing.
Answer: Anaconda Copper Mining Company