Why go
- City in South Dakota, United States.
- 1 curated must-see attraction on record, including Mt. Rushmore National Memorial.
- Served by Mondell Field (ECS).
History
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.
Must-see attractions
Airports
✈ Airlines & flight paths — 5 airlines, 7 direct destinations
- Allegiant Air G4 (MD-80) · 2 routes: Las Vegas, Mesa
- Delta Air Lines DL (CRJ, CRJ-900, Embraer 175) · 2 routes: Minneapolis*, Salt Lake City*
- United Airlines UA (ERJ, Dash 8-400, CRJ) · 2 routes: Chicago*, Denver*
- American Airlines AA (CRJ, ERJ-145) · 1 route: Dallas-Fort Worth*
- US Airways US (CRJ, ERJ-145) · 1 route: Dallas-Fort Worth*
Routes and aircraft from OpenFlights (open data; a point-in-time snapshot). * = codeshare. Linked destinations open their own guidebook. Flight numbers are not in the open data — they come from the airline or a paid schedule feed.
Where things are
Photographs
credit: Wikipedia / Wikimedia Commons · See source page
When to go
The warmer, longer-day half of the year is the safest bet for a first visit.
Cooler and quieter, with fewer visitors and better value.
Short days and the coldest weather — check local conditions before travelling.
Getting there & around
Getting there. The nearest airport on record is Mondell Field (ECS); 3 other airports serve the wider area. Check rail and road links from the tourism sources below.
Getting around. Use the map above to orient yourself; nearby hotels, attractions and places to eat are listed from the live Ultimate data for Keystone, South Dakota. Local transit details will be added as the guide is expanded.