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The Sanford Underground Research Facility (SURF), or Sanford Lab, is an underground laboratory in Lead, South Dakota. The deepest underground laboratory in the United States, it houses multiple experiments in areas such as dark matter and neutrino physics research, biology, geology and engineering.
By 1910, Lead had a population of 8,382, making it the second largest town in South Dakota. [10] Lead was founded as a company town by the Homestake Mining Company, which ran the nearby Homestake Mine. Phoebe Hearst, wife of George Hearst, one of the principals, was instrumental in making Lead more livable. She established the Hearst Free ...
This is a list of places incorporated in the U.S. state of South Dakota as cities. Municipalities in South Dakota can also be incorporated as towns. South Dakota has one incorporated village, Wentworth, Lake County. [1] There are 310 municipalities.
This is a list of places incorporated in South Dakota as towns, regardless of size. Municipalities in South Dakota can also be incorporated as cities. South Dakota also has one incorporated village, Wentworth. [1] Towns in South Dakota have small populations, ranging from 3 up to 766 as of the 2010 Census.
The Homestake Mine was a deep underground gold mine (8,000 feet or 2,438 m) located in Lead, South Dakota. Until it closed in 2002 it was the largest and deepest gold mine in the Western Hemisphere . The mine produced more than forty million troy ounces (43,900,000 oz; 1,240,000 kg) of gold during its lifetime. [1]
A further extension westward occurred in February 1961, when SD 34 absorbed the alignment of South Dakota Highway 24. [5] In the late 1960s, a portion of SD 34 (along with U.S. Highway 14) was upgraded as part of the construction of Interstate 90. The segment between Whitewood and Sturgis (exits 23 and 30) remains signed with I-90 and U.S. 14.
South Dakota Highway 87 (SD 87) is a 37.894-mile-long (60.984 km) state highway in the southwestern part of the U.S. state of South Dakota. It travels through the Black Hills region. The highway's southern terminus is at an intersection with U.S. Route 385 (US 385), about 6 miles (9.7 km) southeast of Pringle , within the southwestern part of ...
South Dakota Highway 34 now roughly follows this route. The Fort Ridgely and South Pass Wagon Road, also known as Nobles Trail, the first road in Dakota Territory, passed through the area. It was made in 1857, connecting Fort Ridgley, Minnesota with South Pass in Wyoming Territory, along the Oregon Trail. The Minnesota and Powder River Road of ...