| Clue | Source | Date |
|---|---|---|
| South Dakota national park that’s said to “breathe” | Wall Street Journal | 28 Oct 2023 |
| South Dakota national park known for its air currents | LA Times Daily | 08 Mar 2023 |
| National park in South Dakota | ||
| National park near Mount Rushmore | ||
| National Park near Mt. Rushmore. |