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   "22LHD3KL",
   "22LHD4LL"
  ],
  "ign_editions": [
   "2025-07-24",
   "2025-09-19"
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   "LHD_FXX_0684_6507_MNT_O_0M50_LAMB93_IGN69": "2025-09-19",
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   "LHD_FXX_0684_6509_MNT_O_0M50_LAMB93_IGN69": "2025-09-19",
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   "LHD_FXX_0685_6507_MNT_O_0M50_LAMB93_IGN69": "2025-09-19",
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   "LHD_FXX_0686_6504_MNT_O_0M50_LAMB93_IGN69": "2025-07-24"
  },
  "climb_origin": "named-pass",
  "structure_own_ways": 24,
  "structure_mask_ranges_m": [
   [
    7901.4,
    7916.5
   ],
   [
    6867.8,
    6876.1
   ],
   [
    6657.1,
    6671.5
   ],
   [
    8259.2,
    8279.8
   ],
   [
    8386.0,
    8402.3
   ]
  ],
  "suppression_unstable": [
   5.0
  ],
  "carriageway": {
   "stations": 371,
   "stations_resolved": 371,
   "width_median_m": 6.5,
   "width_p10_m": 4.5,
   "width_min_m": 1.0,
   "width_max_m": 12.0,
   "bounded_share": 0.372,
   "unbounded_share": 0.628,
   "confidence_median": 0.0,
   "width_median_bounded_m": 6.88,
   "window_m": [
    6989.0,
    7014.0
   ],
   "width_at_max25_m": 4.0,
   "window_stations": 7,
   "single_track": false,
   "single_track_rule": "PROVISIONAL (2026-09-15): width_p10_m <= 3.0 m with bounded_share >= 0.6; recorded, not a rule",
   "status": "ok",
   "source": "dtm",
   "station_m": 25.0,
   "window_station_m": 5.0,
   "halfwidth_m": 6.0,
   "step_m": 0.25,
   "level_tol_m": 0.12,
   "break_min_m": 0.3,
   "stations_failed": 0,
   "hedge_to_hedge": {
    "stations": 371,
    "stations_resolved": 371,
    "width_median_m": 5.75,
    "width_p10_m": 0.75,
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    "width_at_max25_m": 3.25,
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    "halfwidth_m": 6.0,
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    "level_tol_m": 0.5,
    "break_min_m": 0.3,
    "stations_failed": 0
   }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Rochefort-Montagne",
  "county": "Puy-de-D\u00f4me",
  "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)"
 }
}