National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
The story so far
Keystone, in brief
Wikipedia doesn’t have a history of Keystone yet. The photos, dates and memories neighbors add here are how it gets written.
Keystone is a city in the Black Hills region of Pennington County, South Dakota, United States. The population was 240 at the 2020 census. It had its origins in 1883 as a mining town, and has since transformed itself into a resort town, serving the needs of the millions of visitors to the Mount Rushmore National Memorial, which is located just beyond the town limits. Keystone was heavily damaged in the 1972 Black Hills flood. The town took its name from a local mine, which most likely was named after the keystone Masonic symbol.
Keystone was established in 1883. Between the 2010 and 2020 censuses its population fell from 337 to 240 (-29%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Keystone, 1880 to 1958
Woven from the archive, the National Register and the people born here.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
From Wikimedia Commons (1), the Library of Congress (3), Wikidata (2), the National Register of Historic Places (4) and Wikidata for famous people. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
1940
1940