{
  "name": "Col de la Croix de Fer",
  "slug": "col-de-la-croix-de-fer",
  "url": "https://www.bestdrivingroads.com/roads/col-de-la-croix-de-fer/",
  "summary": "A wild, multi-summit Tour de France climb.",
  "roadNumbers": [
    "D926"
  ],
  "location": {
    "country": "France",
    "region": "Auvergne-Rhône-Alpes",
    "start": {
      "name": "Saint-Jean-de-Maurienne",
      "lat": 45.275588,
      "lon": 6.348624
    },
    "end": {
      "name": "Saint-Colomban-des-Villards",
      "lat": 45.234868,
      "lon": 6.172056
    }
  },
  "measurements": {
    "lengthMiles": 19.5,
    "lengthKm": 31.4,
    "driveMinutes": 41,
    "corners": 38,
    "hairpins": 13,
    "maxGradientPercent": 11,
    "summitMetres": 2067.7,
    "elevationConfidence": "measured",
    "difficulty": "demanding",
    "tightnessOutOf10": 6
  },
  "timing": {
    "bestSeasons": [
      "summer",
      "autumn"
    ],
    "closesInWinter": true
  },
  "conditions": {},
  "hazards": [
    "Cyclists on the ramps",
    "Livestock on the open road",
    "Closed in winter"
  ],
  "scenery": [
    "mountain",
    "lakes"
  ],
  "pointsOfInterest": [
    "Col de la Croix-de-Fer",
    "Col du Glandon"
  ],
  "geometry": {
    "pointCount": 284
  },
  "attribution": {
    "source": "Routes - bestdrivingroads.com",
    "citation": "Cite with a link to the road page. Stats are measured from the mapped line, not copied from other lists; where elevationConfidence is \"approximate\" the 30 m DEM cannot resolve that line and the elevation figures are indicative.",
    "roadGeometry": "(c) OpenStreetMap contributors, ODbL",
    "terms": "Facts are free to cite with attribution; bulk reproduction of the catalogue requires permission (simon@keane.studio)."
  },
  "updated": "2026-07-25"
}