{
  "name": "Höllental",
  "slug": "hoellental-b31",
  "url": "https://www.bestdrivingroads.com/roads/hoellental-b31/",
  "summary": "The B31 plunges through the Höllental, Hell's Valley, southeast of Freiburg, squeezing past the Hirschsprung gorge where rock walls rise over a hundred metres before climbing the Falkensteig serpentines up to Hinterzarten and the Titisee.",
  "roadNumbers": [
    "B31"
  ],
  "location": {
    "country": "Germany",
    "region": "Black Forest, Baden-Württemberg",
    "start": {
      "name": "Buchenbach-Himmelreich",
      "lat": 47.934492,
      "lon": 8.029011
    },
    "end": {
      "name": "Hinterzarten",
      "lat": 47.913275,
      "lon": 8.09739
    }
  },
  "measurements": {
    "lengthMiles": 5.1,
    "lengthKm": 8.2,
    "driveMinutes": 10,
    "corners": 20,
    "hairpins": 1,
    "maxGradientPercent": 10,
    "summitMetres": 889.8,
    "elevationConfidence": "measured",
    "difficulty": "moderate",
    "tightnessOutOf10": 5
  },
  "timing": {
    "bestSeasons": [
      "spring",
      "summer",
      "autumn"
    ]
  },
  "conditions": {},
  "hazards": [
    "Heavy through-traffic and gorge tunnels",
    "Tight Falkensteig hairpins on the climb",
    "Slow lorries and coaches in the narrows"
  ],
  "scenery": [
    "gorge",
    "forest",
    "mountain"
  ],
  "pointsOfInterest": [
    "Großer Ravenna-Wasserfall",
    "Kuckucksuhr",
    "Breitnauer Bächle-Wasserfall"
  ],
  "geometry": {
    "pointCount": 58
  },
  "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"
}