| Clue | Source | Date |
|---|---|---|
| Longtime Arctic transportation methods | LA Times Daily | 01 Feb 2020 |
| Longtime Arctic transportation methods | The Washington Post | 01 Feb 2020 |
| Iditarod crews | Thomas Joseph | 09 Jan 2017 |
| Husky groups | ||
| They pull Alaskan sleds | ||
| Iditarod participants |