LIVING SURVEY — measurements are reviewed continuously as new data and local evidence arrive. Seen a sign, a gate, or a better name? Submit an update no account needed · photos welcome via GitHub

← all climbs

Valdresflye from Bygdin

7229.4 m · net rise 338.2 m · total ascent 344.1 m · overall 4.7% · evidence quality B (good) · Vang · Innlandet

Shape: sustained — 33% of the climbing sits in a quarter of the distance; longest continuous stretch at 10%+ is 28 m.

Not yet matched against documented climbs — the measurement stands on its own.

Gradient ladder what do windows mean?

WindowMaximumLocated at
2 m (diagnostic)≈10%2291–2293 munder overhead cover terrain reads 111.4% at 2201–2203 m across a structure — excluded
3 m (diagnostic)≈10%2220–2223 munder overhead cover terrain reads 103.3% at 2200–2203 m across a structure — excluded
5 m≈9%2220–2225 munder overhead cover terrain reads 81.1% at 2199–2204 m across a structure — excluded
10 m≈9%2291–2301 munder overhead cover terrain reads 48.0% at 2194–2204 m across a structure — excluded
20 m≈9.0%2291–2311 munder overhead cover terrain reads 28.2% at 5–25 m across a structure — excluded
25 m≈8.9%2290–2315 munder overhead cover terrain reads 23.8% at 2192–2217 m across a structure — excluded
50 m≈8.7%2218–2268 munder overhead cover terrain reads 16.3% at 2192–2242 m across a structure — excluded
100 m≈8.6%2219–2319 munder overhead cover terrain reads 12.3% at 2192–2292 m across a structure — excluded

may start earlier Extent detection suggests reviewing where this climb starts/ends.

Map

Check this route yourself: Google Maps route via their router · Street View at the base where coverage exists · geojson.io our exact measured line · OpenTopoMap

This climb's data: OCL JSON — the full gradient ladder, quality flags and provenance in the OpenClimb Ladder format.

Surface: paved throughout, according to NVDB, Norway's National Road Database.

Measured, not vetted. This page records what the laser record shows about the road's shape — nothing more. Nobody has necessarily ridden or inspected this road for the survey, and a page here is not a recommendation and no guarantee that the road is open, surfaced, rideable or safe. Gates, private sections, missing rights of way and hazards do not show up in elevation data. Check access and conditions on the ground and make your own judgment.

Ridden it, or know better? Submit data for this climb no account needed ·

Route colour = gradient over a 25 m window: <10% 10–20% 20–25% ≥25%

Route line = the road surface as the LiDAR survey finds it. Basemap roads are for orientation and may sit a few metres off.

  © OpenStreetMap contributors · topo tiles © OpenTopoMap (CC-BY-SA) · vector tiles OpenFreeMap

Valdresflye from Bygdin LiDAR hillshade map with contours

Profile

The map, profile and gradient chart share one position — move your pointer over them and the marker follows. Colors are the gradient bands; the shaded span is the steepest 25 m. Any 25 m figure is good to about a point either way (why).

Valdresflye from Bygdin elevation profile
Valdresflye from Bygdin rolling gradient profile
 

Measurement card

ElevationKartverket NHM DTM 1 m (laser-covered ground only) — Nasjonal høydemodell (NHM) DTM, 1 m, EPSG:25833, NN2000 (Kartverket), served by the hoydedata.no ImageServer; ground without a laser project is a coarser resampled product and is never measured
Resolution / CRS1.0 m grid, EPSG:25833; sampled every 1.0 m, bilinear interpolation
TilesE168000-N6815000, E168000-N6815500, E168500-N6815000, E168500-N6815500, E169000-N6815500, E169000-N6816000, E169000-N6816500, E169000-N6817000, E169000-N6817500, E169000-N6818000, E169000-N6818500, E169000-N6819000, E169000-N6819500, E169000-N6820000, E169000-N6820500, E169000-N6821000, E169000-N6821500, E169500-N6815500, E169500-N6816000, E169500-N6816500, E169500-N6817000, E169500-N6817500, E169500-N6818000, E169500-N6818500, E169500-N6819000, E169500-N6819500, E169500-N6820000, E169500-N6820500, E169500-N6821000, E169500-N6821500
Road centrelineOpenStreetMap (local PBF extract)
Quality statusevidence quality B; caveated windows: structure excluded, structure excluded min
AnalysisOCL 0.1.0, analysis 0.1.0, run no-b06, calculated 2026-10-03

Provenance

{
  "analysis_version": "0.1.0",
  "run_manifest": {
    "manifest_version": "1",
    "code_git_sha": "f734ae6b8374a5620775f88f78087f4b3f1875d8",
    "code_git_dirty": "false",
    "analysis_version": "0.1.0",
    "analysis_config_digest": "sha256:8c94015b54267da4",
    "python": "3.14.4",
    "numpy": "2.5.3",
    "rasterio": "1.5.2",
    "pyproj": "3.8.0",
    "laspy": "2.7.0",
    "shapely": "2.1.2",
    "pyosmium": "4.3.1",
    "libosmium": "2.23.1",
    "gdal": "3.12.2",
    "proj": "9.8.1",
    "run_id": "no-b06",
    "road_pbf": "no-b06-block-batch-no-b06.osm.pbf",
    "region_key": "norway",
    "crs": "EPSG:25833",
    "elevation_provider_key": "nhm-no",
    "tile_index": "nhm-window",
    "authority": "nvdb",
    "registry_pbf": "norway-2026-10-01.osm.pbf"
  },
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
  ],
  "diagnostic_windows_m": [
    2.0,
    3.0
  ],
  "scale_correction": "point",
  "scale_correction_crs": "EPSG:25833",
  "elevation_crs": "EPSG:25833",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
    "data/cache/no/nhm-no_dtm_E168000-N6815000_1m.tif",
    "data/cache/no/nhm-no_dtm_E168000-N6815500_1m.tif",
    "data/cache/no/nhm-no_dtm_E168500-N6815000_1m.tif",
    "data/cache/no/nhm-no_dtm_E168500-N6815500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6815500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6816000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6816500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6817000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6817500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6818000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6818500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6819000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6819500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6820000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6820500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6821000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169000-N6821500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6815500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6816000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6816500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6817000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6817500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6818000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6818500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6819000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6819500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6820000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6820500_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6821000_1m.tif",
    "data/cache/no/nhm-no_dtm_E169500-N6821500_1m.tif"
  ],
  "calculated_at": "2026-10-03T19:25:03+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/no-b06-block-batch-no-b06.osm.pbf",
  "osm_snapshot": "",
  "run_id": "no-b06",
  "elevation_provider": "Kartverket NHM DTM 1 m (laser-covered ground only)",
  "elevation_licence": "CC BY 4.0 \u2014 \u00a9 Kartverket (https://www.kartverket.no/api-og-data/vilkar-for-bruk)",
  "elevation_dataset": "Nasjonal h\u00f8ydemodell (NHM) DTM, 1 m, EPSG:25833, NN2000 (Kartverket), served by the hoydedata.no ImageServer; ground without a laser project is a coarser resampled product and is never measured",
  "elevation_vertical_datum": "NN2000",
  "elevation_tile_ids": [
    "E168000-N6815000",
    "E168000-N6815500",
    "E168500-N6815000",
    "E168500-N6815500",
    "E169000-N6815500",
    "E169000-N6816000",
    "E169000-N6816500",
    "E169000-N6817000",
    "E169000-N6817500",
    "E169000-N6818000",
    "E169000-N6818500",
    "E169000-N6819000",
    "E169000-N6819500",
    "E169000-N6820000",
    "E169000-N6820500",
    "E169000-N6821000",
    "E169000-N6821500",
    "E169500-N6815500",
    "E169500-N6816000",
    "E169500-N6816500",
    "E169500-N6817000",
    "E169500-N6817500",
    "E169500-N6818000",
    "E169500-N6818500",
    "E169500-N6819000",
    "E169500-N6819500",
    "E169500-N6820000",
    "E169500-N6820500",
    "E169500-N6821000",
    "E169500-N6821500"
  ],
  "elevation_blocks": [
    "nhm-dtm-1m"
  ],
  "nhm_laser_projects": [
    {
      "name": "NDH Gausdal vestfjell-Beito-Vennisfjellet 2pkt 2018",
      "year": 2018,
      "last_flight_date": "2018-10-24",
      "points_per_m2": 2,
      "resolution_m": 0.5,
      "season": ""
    },
    {
      "name": "NDH Jotunheimen 4pkt 2017",
      "year": 2017,
      "last_flight_date": "2017-01-01",
      "points_per_m2": 4,
      "resolution_m": 0.25,
      "season": "season-unknown"
    },
    {
      "name": "NDH Skjeldrane 4pkt 2018",
      "year": 2018,
      "last_flight_date": "2018-01-01",
      "points_per_m2": 4,
      "resolution_m": 0.25,
      "season": "season-unknown"
    },
    {
      "name": "Valdres 2007",
      "year": 2007,
      "last_flight_date": "2007-01-01",
      "points_per_m2": 0.5,
      "resolution_m": 1,
      "season": "season-unknown"
    },
    {
      "name": "Vestre-Slidre Valdresflya 2005",
      "year": 2005,
      "last_flight_date": "2005-01-01",
      "points_per_m2": 1,
      "resolution_m": 1,
      "season": "season-unknown"
    }
  ],
  "nhm_last_flight_date": "2018-10-24",
  "nhm_flight_season_unknown": [
    "NDH Jotunheimen 4pkt 2017",
    "NDH Skjeldrane 4pkt 2018",
    "Valdres 2007",
    "Vestre-Slidre Valdresflya 2005"
  ],
  "nhm_retrieved_at": "2026-10-03T19:25:01Z",
  "nhm_note": "laser projects overlapping the route's cells; the mosaic draws on them by its own priority and which project supplied which pixel is not recorded",
  "climb_origin": "named-pass",
  "named_pass": "Valdresflye",
  "seam_filled_samples": {
    "count": 0,
    "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 7,
  "tunnel_check": "osm tunnel=* ways on 7 own way(s)",
  "tunnel_ranges_m": [],
  "underground_fraction": 0.0,
  "structure_mask_ranges_m": [
    [
      2185.2,
      2205.0
    ],
    [
      0.0,
      13.1
    ],
    [
      6184.3,
      6191.7
    ]
  ],
  "mask_basin_extension_m": 5.0,
  "carriageway": {
    "stations": 295,
    "stations_resolved": 295,
    "width_median_m": 5.25,
    "width_p10_m": 4.0,
    "width_min_m": 2.25,
    "width_max_m": 9.75,
    "bounded_share": 0.119,
    "unbounded_share": 0.881,
    "confidence_median": 0.0,
    "width_median_bounded_m": 5.5,
    "window_m": [
      2290.0,
      2315.0
    ],
    "width_at_max25_m": 5.25,
    "window_stations": 6,
    "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": 295,
      "stations_resolved": 295,
      "width_median_m": 9.25,
      "width_p10_m": 7.75,
      "width_min_m": 3.5,
      "width_max_m": 12.0,
      "bounded_share": 0.634,
      "unbounded_share": 0.366,
      "confidence_median": 0.961,
      "width_median_bounded_m": 8.5,
      "window_m": [
        2290.0,
        2315.0
      ],
      "width_at_max25_m": 10.5,
      "window_stations": 6,
      "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"
}