{
  "name": "Whitney Portal Road",
  "slug": "whitney-portal-road",
  "url": "https://www.bestdrivingroads.com/roads/whitney-portal-road/",
  "summary": "A short, dramatic switchback climb out of Lone Pine through the Alabama Hills to the foot of Mount Whitney, the highest peak in the lower 48.",
  "location": {
    "country": "United States",
    "region": "California",
    "start": {
      "name": "Lone Pine",
      "lat": 36.604587,
      "lon": -118.063947
    },
    "end": {
      "name": "Whitney Portal",
      "lat": 36.586878,
      "lon": -118.24014
    }
  },
  "measurements": {
    "lengthMiles": 11.7,
    "lengthKm": 18.8,
    "driveMinutes": 25,
    "corners": 25,
    "hairpins": 0,
    "maxGradientPercent": 8,
    "summitMetres": 2537.9,
    "elevationConfidence": "measured",
    "difficulty": "moderate",
    "tightnessOutOf10": 6
  },
  "timing": {
    "bestSeasons": [
      "spring",
      "summer",
      "autumn"
    ],
    "closesInWinter": true
  },
  "conditions": {},
  "hazards": [
    "Unguarded switchback edges",
    "Rockfall on the upper grade",
    "No winter snow clearing"
  ],
  "scenery": [
    "mountain",
    "valley"
  ],
  "pointsOfInterest": [
    "Mount Whitney Pack Trains",
    "Cousin Jack"
  ],
  "geometry": {
    "pointCount": 88
  },
  "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"
}