{
  "name": "El Camino del Rio",
  "slug": "el-camino-del-rio-fm-170-texas",
  "url": "https://www.bestdrivingroads.com/roads/el-camino-del-rio-fm-170-texas/",
  "summary": "FM 170 follows the Rio Grande for about 48 miles from Lajitas through Big Bend Ranch State Park to Presidio, with steep hills, blind crests and canyon views, and no fuel between the two towns.",
  "roadNumbers": [
    "FM 170"
  ],
  "location": {
    "country": "United States",
    "region": "Texas",
    "start": {
      "name": "Lajitas",
      "lat": 29.261749,
      "lon": -103.775912
    },
    "end": {
      "name": "Presidio",
      "lat": 29.552858,
      "lon": -104.350067
    }
  },
  "measurements": {
    "lengthMiles": 48,
    "lengthKm": 77.2,
    "driveMinutes": 101,
    "corners": 120,
    "hairpins": 0,
    "maxGradientPercent": 15,
    "summitMetres": 867.9,
    "elevationConfidence": "measured",
    "difficulty": "demanding",
    "tightnessOutOf10": 6
  },
  "timing": {
    "bestSeasons": [
      "spring",
      "autumn",
      "winter"
    ]
  },
  "conditions": {},
  "hazards": [
    "Rough, uneven pavement with loose rock east of Presidio (sheriff's warning, October 2026)",
    "Flash floods across creek crossings after storms",
    "Extreme summer heat, typically over 100 F by late morning",
    "Steep hills and blind crests, up to 15 percent",
    "No fuel between Lajitas and Presidio",
    "Long emergency response times on a remote road"
  ],
  "scenery": [
    "desert",
    "gorge",
    "mountain"
  ],
  "pointsOfInterest": [
    "Boardwalk Bakery & Pizzeria",
    "Closed Canyon Trailhead",
    "Colorado Canyon",
    "Hoodoos Trailhead Parking",
    "Fort Leaton State Historic Site"
  ],
  "geometry": {
    "pointCount": 407
  },
  "attribution": {
    "source": "bestdrivingroads.com",
    "citation": "Cite with a link to the road page. Stats are measured from the mapped line; 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": "2026-10-11"
}