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Ardennes — road climbs measured by LiDAR
All 12 published climbs in Ardennes, ranked by their steepest 25 m and measured on IGN’s LiDAR HD 0.5 m laser surveys.
Surface: · Caveated rows: (ranks stay the true ranks) · every published row is listed here — the toggles filter this page without hiding anything from the links above.
| # | Climb | Department | Max 25 m | Length | Net rise | Overall | Surface | Evidence |
|---|---|---|---|---|---|---|---|---|
| 1 | Discovered lane (49.8188, 4.7478) | Ardennes | ≈caveated21.5% | 245 m | 22 m | 9.1% | mixed surface | Good |
| 2 | Ruelle du Réservoir | Ardennes | 21.4% | 598 m | 44 m | 7.3% | paved | High |
| 3 | Rue Pasteur | Ardennes | 21.4% | 616 m | 41 m | 6.7% | paved | High |
| 4 | Terres Rochette | Ardennes | 21.1% | 721 m | 73 m | 10.2% | paved | High |
| 5 | Rue du Château | Ardennes | ≈caveated20.4% | 996 m | 59 m | 5.9% | paved | Good |
| 6 | Discovered lane (49.5874, 4.2765) | Ardennes | 20.4% | 651 m | 62 m | 9.5% | paved | Good |
| 7 | Lotissement le Soleil | Ardennes | 20.4% | 680 m | 43 m | 6.3% | paved | High |
| 8 | Rue de Roger Fontaine | Ardennes | 20.1% | 749 m | 41 m | 5.5% | paved | High |
| 9 | Col du Loup from Thilay | Ardennes | ≈caveated14.0% | 3697 m | 228 m | 6.2% | paved | Good |
| 10 | Col du Liry from Bogny-sur-Meuse | Ardennes | ≈caveated12.6% | 1777 m | 153 m | 8.6% | paved | Good |
| 11 | Col du Loup from Les Hautes-Rivières | Ardennes | 9.8% | 5980 m | 213 m | 3.6% | paved | High |
| 12 | Col du Loup from Nouzonville | Ardennes | 6.3% | 7030 m | 243 m | 3.5% | paved | High |