Kirkstone Pass
3457.9 m · net rise 265.4 m · total ascent 282.8 m · overall 7.7% · confidence: good · Caiston Glen · Westmorland and Furness
Shape: sustained — 39% of the climbing sits in a quarter of the distance; longest continuous stretch at 10%+ is 328 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 OS road network, surface models and map tags, 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) | ≈19% | 3163–3165 m | under overhead cover terrain reads 159.2% at 297–299 m across a structure — excluded |
| 3 m (diagnostic) | ≈19% | 3163–3166 m | under overhead cover terrain reads 153.8% at 296–299 m across a structure — excluded |
| 5 m | ≈19% | 3163–3168 m | under overhead cover terrain reads 118.9% at 295–300 m across a structure — excluded |
| 10 m | ≈19% | 3160–3170 m | under overhead cover terrain reads 62.0% at 295–305 m across a structure — excluded |
| 20 m | ≈18.0% | 3156–3176 m | under overhead cover terrain reads 31.8% at 295–315 m across a structure — excluded |
| 25 m | ≈17.7% | 3154–3179 m | under overhead cover terrain reads 27.7% at 2669–2694 m across a structure — excluded |
| 50 m | ≈16.7% | 3150–3200 m | under overhead cover terrain reads 21.1% at 2669–2719 m across a structure — excluded |
| 100 m | ≈15.9% | 3111–3211 m | under overhead cover terrain reads 16.5% at 2668–2768 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.
Ridden it, or know better? Submit data for this climb no account needed
© OpenStreetMap contributors · topo tiles © OpenTopoMap (CC-BY-SA) · vector tiles OpenFreeMap
Profile
Provenance
{
"analysis_version": "0.1.0",
"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
],
"elevation_crs": "EPSG:27700",
"elevation_resolution_m": 1.0,
"elevation_tiles": [
"data/cache/england/bulk_dtm_1m/NY4005.tif",
"data/cache/england/bulk_dtm_1m/NY4010.tif"
],
"calculated_at": "2026-08-15T23:53:21+00:00",
"road_source": "OpenStreetMap (local PBF extract)",
"road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
"osm_pbf_path": "data/cache/pbf/england-2026-08-12-roads.osm.pbf",
"osm_snapshot": "2026-08-12T20:21:46Z",
"elevation_provider": "Environment Agency",
"elevation_dataset": "EA LIDAR Composite DTM 1m (2022)",
"elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Environment Agency",
"elevation_coverage_id": "13787b9a-26a4-4775-8523-806d13af58fc__Lidar_Composite_Elevation_DTM_1m",
"elevation_tile_ids": [
"NY4005.tif",
"NY4010.tif"
],
"climb_origin": "discovered",
"notes": "Coarse pass: max 10.5% over 200 m (Terrain 50), gain 54.8 m over 1315 m way. EXTENDED by graph walk: +2 segment(s) at base, +6 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. DEDUPE: absorbed 4 overlapping proposal(s): kirkstone-pass-2, kirkstone-pass-3, kirkstone-pass-4, kirkstone-pass-5"
}