| Clue | Source | Date |
|---|---|---|
| Trail for cyclists | LA Times Daily | 25 Dec 2025 |
| Repurposed railway, perhaps | LA Times Daily | 16 Nov 2019 |
| Repurposed railway, perhaps | The Washington Post | 16 Nov 2019 |
| Path for cyclists | New York Times | 14 Aug 2017 |
| Path for cyclists | ||
| Pathway for cyclists | ||
| Tour de France layout |