Keystone in Pennington County, South Dakota — The American Midwest (Upper Plains)
Keystone Trading Company/Halley's Store
Photographed by William Fischer, Jr., September 17, 2026
1. Keystone Trading Company/Halley's Store Marker
This store was built in the 1890s as the Keystone Trading Company. It was the largest general merchandising establishment in the area and was fully stocked with "everything to meet the needs of miners and their families." A prominent businessman, James Halley III, purchased the store in 1917. He changed the name to Halley's Store in the 1930s. James Halley IV (Junior) worked in the store as a young man and acquired the business in 1952. He operated it until 1980. It is the oldest continuously operating business in Keystone. The building is on the National Register of Historic Places.
[Photo captions, clockwise from top right, read]
• Keystone teenagers, Kenneth Brandt, Rex Jatko, Ralph Virtue, Nick Clifford, and Wayne Snyder are enjoying cold watermelon on a hot day.
• At one time a vial of gold dust could purchase anything in this picture.
• Interior of store
• The Halley's Store in the 1930s./The Halley's Store in the 1950s.
Erected 2005 by Keystone Area Historical Society. (Marker Number 13.)
Topics and series. This historical marker is listed in these topic lists: Industry & Commerce • Settlements & Settlers.
this page online
Location. 43° 53.781′ N, 103° 25.145′ W. Marker is in Keystone, South Dakota, in Pennington County. It is on Mitchell Street west of 1st Street (State Route 40), on the right when traveling west. Touch for map. Marker is at or near this postal address: 501 1st St, Keystone SD 57751, United States of America. Touch for directions.
Regionally, this marker is in West River, in the Badlands, and in Greater Rapid City. It is also in the American Black Hills, in the Lewis & Clark Corridor, on the prairies, and on the Northern Plains. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once Rupert’s Land and also the Louisiana Purchase.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Keystone Battle Creek Cultural Center (a few steps from this marker); Medical Office of Eugene B. Hultz, M.D. (a few steps from this marker); Halley's Store Icehouse (a few steps
Photographed by William Fischer, Jr., September 17, 2026
2. Keystone Trading Company/Halley's Store and Marker
Also see . . .
1. Historic Keystone Walking Tour. (Submitted on October 2, 2026, by William Fischer, Jr. of Reynoldsburg, Ohio.)
2. National Register of Historic Places Inventory—Nomination Form. (Submitted on October 4, 2026.)
Credits. This page was last revised on October 4, 2026. It was originally submitted on October 2, 2026, by William Fischer, Jr. of Reynoldsburg, Ohio. This page has been viewed 11 times since then. Photos: 1, 2. submitted on October 2, 2026, by William Fischer, Jr. of Reynoldsburg, Ohio.
