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

Kåre Kongsbrors veg

302.9 m · net rise 31.3 m · overall 10.3% · evidence quality A (high) · Malvik · Trøndelag

Shape: stepped — 48% of the climbing sits in a quarter of the distance; longest continuous stretch at 10%+ is 156 m.

Found purely from mapping and LiDAR data, and not yet matched against books, race records or lists — it may be well known to locals under a name we've never heard. It was cross-checked against the NVDB road network, OpenStreetMap and a second terrain model, but a discovery can still be an artifact of the terrain model or the map. Treat it as a well-evidenced hypothesis until someone has ridden it. If you know this road, tell us what you found — photographs, corrections and local knowledge all welcome; the map links below let you scout it first.

Gradient ladder what do windows mean?

Window	Maximum	Located at
2 m (diagnostic)	23%	51–53 m
3 m (diagnostic)	23%	50–53 m
5 m	22%	51–56 m
10 m	22%	51–61 m
20 m	21.5%	47–67 m
25 m	21.3%	44–69 m
50 m	20.7%	38–88 m
100 m	19.2%	21–121 m

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: NVDB, Norway's National Road Database records no surface for this road; the map may tell you more.

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 · Share this climb

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.

Kåre Kongsbrors veg 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).

Measurement card

Elevation	Kartverket 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 / CRS	1.0 m grid, EPSG:25833; sampled every 1.0 m, bilinear interpolation
Tiles	E280000-N7041500, E280500-N7041500
Road centreline	OpenStreetMap (local PBF extract)
Quality status	evidence quality A; no review flags; no caveated windows
Analysis	OCL 0.1.0, analysis 0.1.0, run no-b11, calculated 2026-10-03

Provenance

{
  "analysis_version": "0.1.0",
  "run_manifest": {
    "manifest_version": "1",
    "code_git_sha": "368c60c29e47d4b421849c953b172a04f7694146",
    "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-b11",
    "road_pbf": "no-b11-block-batch-no-b11.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_E280000-N7041500_1m.tif",
    "data/cache/no/nhm-no_dtm_E280500-N7041500_1m.tif"
  ],
  "calculated_at": "2026-10-03T19:29:42+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/no-b11-block-batch-no-b11.osm.pbf",
  "osm_snapshot": "",
  "run_id": "no-b11",
  "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": [
    "E280000-N7041500",
    "E280500-N7041500"
  ],
  "elevation_blocks": [
    "nhm-dtm-1m"
  ],
  "nhm_laser_projects": [
    {
      "last_flight_date": "2010-07-24",
      "name": "Malvik 2010",
      "points_per_m2": 2,
      "resolution_m": 0.5,
      "season": "",
      "year": 2010
    },
    {
      "last_flight_date": "2016-08-18",
      "name": "NDH Malvik-Stj\u00f8rdal 2pkt 2016",
      "points_per_m2": 2,
      "resolution_m": 0.5,
      "season": "",
      "year": 2016
    },
    {
      "last_flight_date": "2022-07-30",
      "name": "NDH Trondheim 30pkt 2022",
      "points_per_m2": 30,
      "resolution_m": 0.25,
      "season": "",
      "year": 2022
    },
    {
      "last_flight_date": "2022-07-29",
      "name": "NDH Trondheim-Malvik-Stj\u00f8rdal 5pkt Midt 2022",
      "points_per_m2": 5,
      "resolution_m": 0.25,
      "season": "",
      "year": 2022
    },
    {
      "last_flight_date": "2022-07-29",
      "name": "NDH Trondheim-Malvik-Stj\u00f8rdal 5pkt Vest 2022",
      "points_per_m2": 5,
      "resolution_m": 0.25,
      "season": "",
      "year": 2022
    },
    {
      "last_flight_date": "2010-01-01",
      "name": "Trondheim 2010",
      "points_per_m2": 2,
      "resolution_m": 0.5,
      "season": "season-unknown",
      "year": 2010
    },
    {
      "last_flight_date": "2013-06-13",
      "name": "Trondheim 2013",
      "points_per_m2": 5,
      "resolution_m": 0.25,
      "season": "",
      "year": 2013
    },
    {
      "last_flight_date": "2014-05-29",
      "name": "Trondheim 2014",
      "points_per_m2": 5,
      "resolution_m": 0.25,
      "season": "",
      "year": 2014
    },
    {
      "last_flight_date": "2017-10-10",
      "name": "Trondheim 5pkt 2017",
      "points_per_m2": 5,
      "resolution_m": 0.25,
      "season": "",
      "year": 2017
    },
    {
      "last_flight_date": "2014-01-01",
      "name": "Tr\u00f8ndelag del3 3pkt 2014",
      "points_per_m2": 3,
      "resolution_m": 0.5,
      "season": "season-unknown",
      "year": 2014
    }
  ],
  "nhm_last_flight_date": "2022-07-30",
  "nhm_flight_season_unknown": [
    "Trondheim 2010",
    "Tr\u00f8ndelag del3 3pkt 2014"
  ],
  "nhm_retrieved_at": "2026-10-03T07:27:26Z",
  "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": "discovered",
  "seam_filled_samples": {
    "count": 0,
    "distances_m": []
  },
  "seam_filled_in_maximum": false,
  "structure_own_ways": 1,
  "tunnel_check": "osm tunnel=* ways on 1 own way(s)",
  "tunnel_ranges_m": [],
  "underground_fraction": 0.0,
  "carriageway": {
    "stations": 19,
    "stations_resolved": 19,
    "width_median_m": 5.5,
    "width_p10_m": 4.0,
    "width_min_m": 3.75,
    "width_max_m": 10.5,
    "bounded_share": 0.211,
    "unbounded_share": 0.789,
    "confidence_median": 0.0,
    "width_median_bounded_m": 5.62,
    "window_m": [
      44.0,
      69.0
    ],
    "width_at_max25_m": 4.25,
    "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": 19,
      "stations_resolved": 19,
      "width_median_m": 6.0,
      "width_p10_m": 3.75,
      "width_min_m": 3.25,
      "width_max_m": 9.75,
      "bounded_share": 0.789,
      "unbounded_share": 0.211,
      "confidence_median": 1.0,
      "width_median_bounded_m": 6.0,
      "window_m": [
        44.0,
        69.0
      ],
      "width_at_max25_m": 3.75,
      "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"
}