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Photo: James G. Howes, aka JGHowes at en.wikipedia, Attribution via Wikimedia Commons
The Black Hills Central Railroad Co. is a heritage railroad that operates in Keystone, South Dakota, United States. The railroad was added to the National Register of Historic Places on February 5, 2003.
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Black Hills Institute (BHI) of Geological Research
A paleontological museum associated with a major commercial excavator of dinosaur fossils, famous for finding mostly-complete specimens of Tyrannosaurus rex. Most exhibits are replicas of specimens excavated nearby and then sold to prominent natural history museums, including "Sue" (in the Chicago Field Museum), "Stan" (in Abu Dhabi) and "Trix" (in Leiden).