{
  "name": "Passo del Tonale",
  "slug": "passo-del-tonale",
  "url": "https://www.bestdrivingroads.com/roads/passo-del-tonale/",
  "summary": "The SS42 crosses the Tonale at 1,883 m between Ponte di Legno and Vermiglio, wide and open beneath the Presena glacier: ski resort in winter, fast mountain run once the snow clears.",
  "roadNumbers": [
    "SS42"
  ],
  "location": {
    "country": "Italy",
    "region": "Lombardy",
    "start": {
      "name": "Ponte di Legno",
      "lat": 46.255046,
      "lon": 10.510184
    },
    "end": {
      "name": "Vermiglio",
      "lat": 46.297219,
      "lon": 10.690403
    }
  },
  "measurements": {
    "lengthMiles": 13.5,
    "lengthKm": 21.7,
    "driveMinutes": 26,
    "corners": 26,
    "hairpins": 5,
    "maxGradientPercent": 8,
    "summitMetres": 1881.8,
    "elevationConfidence": "measured",
    "difficulty": "moderate",
    "tightnessOutOf10": 4
  },
  "timing": {
    "bestSeasons": [
      "summer",
      "autumn"
    ]
  },
  "conditions": {},
  "hazards": [
    "Motorbikes and coaches",
    "Exposed, fast-changing summit",
    "Ski traffic in winter"
  ],
  "scenery": [
    "mountain"
  ],
  "pointsOfInterest": [
    "Passo del Tonale",
    "Cascate di Palù"
  ],
  "geometry": {
    "pointCount": 207
  },
  "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"
}