Tintic Standard Reduction Mill
| Genola, Utah
|0.1 acres (0.040 ha)
|NRHP reference No.
|Added to NRHP
|September 13, 1978
The Tintic Standard Reduction Mill—also known as the Tintic Mill or Harold Mill—built in 1920, and only operating from 1921 to 1925, is an abandoned refinery or concentrator located on the west slope of Warm Springs Mountain on the southern edge of Genola, Utah, United States. In 2002, the Utah Department of Environmental Quality tested the soil and found it contained high levels of arsenic and lead, which can lead to serious health problems and even death.
The mill was designed and built by W. C. Madge. It is significant as the only American mill using the Augustin process during the early 1920s.Metals processed at the mill included copper, gold, silver, and lead, all of which were received from another mill near Eureka. The metal content of ore was increased through the process to make transportation less expensive. The reducing process used was an acid-brine chloridizing and leaching process which became outdated, leading to the abandonment of the site in 1925. At the mill's highest productivity it processed 200 tons of ore daily from the Tintic Mining District.
What remains of the mill are foundations for water tanks, crushers, roasters, iron boxes, leaching tanks, and drain boxes. The site dominates the surrounding landscape with its size and unique colors and shapes. It has been speculated that the mill may be the contributor of heavy metal pollution in the Warm Springs which lie below it.
It was listed on the National Register of Historic Places September 13, 1978.
Juab County is a county in western Utah, United States. As of the 2020 United States Census, the population was 11,786. Its county seat and largest city is Nephi.
Eureka is a city in Juab County, Utah, United States. It is part of the Provo–Orem metropolitan area. The population was 669 at the 2010 census, down from 766 in 2000.
The Bingham Canyon Mine, more commonly known as Kennecott Copper Mine among locals, is an open-pit mining operation extracting a large porphyry copper deposit southwest of Salt Lake City, Utah, in the Oquirrh Mountains. The mine is the largest man-made excavation, and deepest open-pit mine in the world, which is considered to have produced more copper than any other mine in history – more than 19,000,000 short tons. The mine is owned by Rio Tinto Group, a British-Australian multinational corporation. The copper operations at Bingham Canyon Mine are managed through Kennecott Utah Copper Corporation which operates the mine, a concentrator plant, a smelter, and a refinery. The mine has been in production since 1906, and has resulted in the creation of a pit over 0.75 miles (1,210 m) deep, 2.5 miles (4 km) wide, and covering 1,900 acres. It was designated a National Historic Landmark in 1966 under the name Bingham Canyon Open Pit Copper Mine. The mine experienced a massive landslide in April 2013 and a smaller slide in September 2013.
The Fernald Feed Materials Production Center is a Superfund site located within Crosby Township in Hamilton County, Ohio, as well as Ross Township in Butler County, Ohio, in the United States. It was a uranium processing facility located near the rural town of New Baltimore, about 20 miles (32 km) northwest of Cincinnati, which fabricated uranium fuel cores for the U.S. nuclear weapons production complex from 1951 to 1989. During that time, the plant produced 170,000 metric tons uranium (MTU) of metal products and 35,000 MTU of intermediate compounds, such as uranium trioxide and uranium tetrafluoride.
The Shenandoah-Dives Mill or Mayflower Mill is an intact and functional but inactive historic ore mill 2 miles (3.2 km) east of Silverton, Colorado, United States. The mill was built in 1929 to recover gold, silver, lead, zinc, and copper from ore mined at the Mayflower mine and brought to the mill by an aerial tramway. Regularly active until 1945, it houses still-functional equipment for the separation by flotation of metals from crushed ores. It is the only intact and functional mill of its kind in Colorado. It was included in the expanded Silverton Historic District in 1997, and was declared a National Historic Landmark on its own in 2000. The mill is owned by the San Juan County Historic Society, which staffs an information and gift shop at the mill under the name Mayflower Mill. The mill is open for self-guided tours in the summer months.
Mammoth is an unincorporated community and semi-ghost town in northeastern Juab County, Utah, United States.
Silver City is a ghost town located at the mouth of Dragon Canyon on the west flank of the East Tintic Mountains in northeast Juab County in central Utah, United States. It was a silver mining town approximately 90 miles (140 km) south-southwest of Salt Lake City. This area was considered part of the Tintic Mining District and also produced bismuth, copper, gold, and lead. Settlement began with the first mining strikes here in 1869. Silver City was inhabited until 1930, after the mines played out. Jesse Knight, known as the "Mormon Wizard" for his ability to find ore easily, decided to build a smelter in Silver City because it had the flattest ground in all of the Tintic Mining District. Silver City had several mines in 1890, but the mines hit water and were abandoned. Now there is little left other than a few holes where mines were, and a number of tailings piles. The Silver City Cemetery, however, survives and is listed on the National Register of Historic Places.
Knightsville is a ghost town located in the East Tintic Mountains on the northern slope of Godiva Mountain, approximately 2 miles (3.2 km) east of Eureka, in the northeastern corner of Juab County in central Utah, United States. A silver mining camp, Knightsville was established and operated as a company town by local mining entrepreneur Jesse Knight. The town was inhabited from 1896 until approximately 1940.
The East Tintic Mountains are a mountain range in central Juab, Utah, and Tooele counties in Utah, United States on the east margin of the Great Basin just west of the Wasatch Front about 50 miles (80 km) south-southeast of Salt Lake City. The community of Eureka is an old mining town near the center of the range. U.S. Route 6 Passes through the central part of the range and through Eureka.
The Knight–Mangum House is a historic house located in Provo, Utah, United States. It is listed on the National Register of Historic Places. The mansion was built in the old English Tudor style, completed in 1908. It was built for Mr. W. Lester Mangum and his wife Jennie Knight Mangum. Mrs. Mangum was the daughter of the famous Utah mining man, Jesse Knight. The lot was purchased for $3,500 and the home was built at a cost of about $40,000. The Mangum family was able to afford the home due to the fact that they had sold their shares in Jesse Knight's mine located in Tintic, Utah, for eight dollars a share. They had purchased the shares for only twenty cents a share, so the excess allowed them enough funds to purchase the home. The contractors for the home were the Alexandis Brothers of Provo.
The Jesse Knight House, also known as the Knight Mansion, is a historic house in Provo, Utah, United States built for Jesse Knight. It was built in 1905, and added to the National Register of Historic Places in 1982. This home was designated to the Provo City Historic Landmarks Register on June 19, 1996.
The John R. Twelves House is a historic house located in Provo, Utah, United States. It is listed on the National Register of Historic Places.
The Knight–Allen House is a historic house located in Provo, Utah. It is listed on the National Register of Historic Places.
The Knight Block is a historic building located on South University Avenue in downtown Provo, Utah, United States. It is listed on the National Register of Historic Places.
The Beck No. 2 Mine near Eureka, Utah dates from 1890. It was listed on the National Register of Historic Places in 1979. The listing included "surface plant buildings" of the lead mine and one other contributing structure, a "remaining wooden headframe", described as a "fifty foot wooden headframe A-frame Montana type". These evoke the past mining operations at the site.
The Eureka Lilly Headframe is the surviving headframe at the Eureka Lilly mine in the Tintic Mining District in Dividend, Utah, United States, and is listed on the National Register of Historic Places.
The International Smelting and Refining Company was a subsidiary of Anaconda Copper that operated primarily out of the International Smelter near Tooele, Utah. The International Smelter began operation in 1910 as a copper producer handling ores from Bingham Canyon and was expanded into a lead smelting operation in 1912. Copper smelting finished at International in 1946, and the lead smelter shut down in January 1972. The closure of the smelter would lead to the associated Tooele Valley Railway to be shut down ten years later in 1982. The company also handled several other Anaconda owned interests. After the shut down of several of the International Smelting sites, environmental reclamation has been performed by Anaconda Copper's successor company ARCO and the EPA Superfund program.
Diamond is a ghost town in eastern Juab County, Utah, United States. The Diamond Cemetery is listed on the National Register of Historic Places.
The Tintic Smelter Site, located off U.S. Route 6 near Silver City, Utah, United States, that is listed on the National Register of Historic Places (NRHP).
The Eureka City Cemetery, located west of Eureka, Utah, United States, was established at its current location in 1894 and was listed on the National Register of Historic Places (NRHP) in 1979.