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Uncle Sam diamond. Uncle Sam is the nickname for the largest diamond ever discovered in the United States. It was found in 1924 in Murfreesboro, Arkansas, at the Prairie Creek pipe mine, which later became known as the Crater of Diamonds State Park.
In 1840, coal was discovered in the town of Spadra, in Johnson County, Arkansas, [1] with coal mining operations beginning that same year. [2] Initially, mining was primarily for local use in blacksmithing, but the construction of the Little Rock and Fort Smith Railroad in the 1870s opened the region up for more commercial mining activity, primarily in the counties of Franklin, Johnson, and ...
A. ^ Harry Winston Diamond Mines owns 40% and Diavik Diamond Mines, which is 100% owned by the Rio Tinto, owns 60%. B. ^ Dominion Diamond Corporation owns 88.9% while Charles Fipke and Stewart Blusson each own 10%.
A signed agreement between Homestake Mining Company and the University of California established the reserve as a research and teaching facility in January 1993. [2] The Ray Krauss Field Station was established on the reserve in 1998 and hosts university courses and research such as geology, plant evolution and genetics, among others.
While Montana's Abandoned Mine Land Program (AML) has successfully taken on close to 300 projects across the state since its establishment in 1980, the project at Belt Creek counts as one of the ...
Prairie Creek is the Redwood Creek tributary drainage basin including the inland portion of Prairie Creek Redwoods State Park. Prairie Creek drains southerly through a Plio-Pleistocene non-marine sedimentary and metasedimentary formation to a confluence with Redwood Creek approximately one mile upstream of Orick, California .
Prairie Creek Redwoods State Park is a state park, located in Humboldt County, California, near the town of Orick and 50 miles (80 km) north of Eureka. The 14,000-acre (57 km 2 ) park is a coastal sanctuary for old-growth Coast Redwood trees.
The Lost Man Creek Dam was located inside the Redwood National and State Parks, in Humboldt County, California. It was positioned 0.8 miles (1.3 km) upstream from the confluence of Lost Man Creek with Prairie Creek and was 24 feet (7.3 m) in length with a width of 75 feet (23 m). The dam extended back southwards 100 feet (30 m).