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a 1 m DTM). 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reproduction autoris\u00e9e avec mention de la source et de la date", "elevation_dataset": "LiDAR HD \u2014 MNT (sol) et MNS (surface), 0,50 m (Institut national de l'information g\u00e9ographique et foresti\u00e8re), RGF93 / Lambert-93 EPSG:2154, altitudes IGN69", "elevation_vertical_datum": "IGN69", "elevation_tile_ids": [ "E387-N6233", "E387-N6234", "E387-N6235", "E388-N6233", "E388-N6234", "E389-N6233" ], "elevation_blocks": [ "21LHD1FQ@2025-09-15" ], "ign_dalles": [ "LHD_FXX_0387_6234_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0387_6235_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0387_6236_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0388_6234_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0388_6235_MNT_O_0M50_LAMB93_IGN69", "LHD_FXX_0389_6234_MNT_O_0M50_LAMB93_IGN69" ], "ign_missions": [ "21LHD1FQ" ], "ign_editions": [ "2025-09-15" ], "ign_dsm_edition": { "LHD_FXX_0387_6234_MNT_O_0M50_LAMB93_IGN69": "2025-09-15", "LHD_FXX_0387_6235_MNT_O_0M50_LAMB93_IGN69": "2025-09-15", "LHD_FXX_0387_6236_MNT_O_0M50_LAMB93_IGN69": "2025-09-15", "LHD_FXX_0388_6234_MNT_O_0M50_LAMB93_IGN69": "2025-09-15", "LHD_FXX_0388_6235_MNT_O_0M50_LAMB93_IGN69": "2025-09-15", "LHD_FXX_0389_6234_MNT_O_0M50_LAMB93_IGN69": "2025-09-15" }, "climb_origin": "discovered", "structure_own_ways": "none \u2014 the route carried no way list; own decks unmasked", "carriageway": { "stations": 248, "stations_resolved": 248, "width_median_m": 4.75, "width_p10_m": 3.25, "width_min_m": 1.25, "width_max_m": 12.0, "bounded_share": 0.464, "unbounded_share": 0.536, "confidence_median": 0.0, "width_median_bounded_m": 4.75, "window_m": [ 1887.0, 1912.0 ], "width_at_max25_m": 3.0, "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": 248, "stations_resolved": 248, "width_median_m": 5.25, "width_p10_m": 1.0, "width_min_m": 0.0, "width_max_m": 12.0, "bounded_share": 0.851, "unbounded_share": 0.149, "confidence_median": 1.0, "width_median_bounded_m": 4.25, "window_m": [ 1887.0, 1912.0 ], "width_at_max25_m": 2.5, "window_stations": 7, "status": "ok", "source": "dsm", "station_m": 25.0, "window_station_m": 5.0, "halfwidth_m": 6.0, "step_m": 0.25, "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": "Tardets-Sorholus", "county": "Pyr\u00e9n\u00e9es-Atlantiques", "source": "OpenStreetMap administrative boundaries (\u00a9 OpenStreetMap contributors, ODbL)" } }