Mount Kearsarge (Rollins State Park)
4069.6 m · net rise 303.1 m · total ascent 305.0 m · overall 7.4% · confidence: high · New Hampshire · share
Shape: sustained — 31% of the climbing sits in a quarter of the distance; longest continuous stretch at 10%+ is 307 m.
Matches: BUMPS / Mt. Kearsarge Hillclimb — 2026 BUMPS calendar (Warner, NH - Rollins side).
Gradient ladder what do windows mean?
| Window | Maximum | Located at | |
|---|---|---|---|
| 2 m (diagnostic) | 19% | 1712–1714 m | |
| 3 m (diagnostic) | 18% | 1712–1715 m | |
| 5 m | 17% | 1713–1718 m | |
| 10 m | 17% | 1713–1723 m | |
| 20 m | 16.6% | 1712–1732 m | |
| 25 m | 16.4% | 1712–1737 m | |
| 50 m | 15.7% | 1696–1746 m | |
| 100 m | 14.9% | 1677–1777 m |
Map
Check this route yourself: Google Maps route via their router · Street View at the base where coverage exists · OSM way 18861539 highlights the mapped road · 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.
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
© 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:26919",
"elevation_resolution_m": 1.0,
"elevation_tiles": [
"data/cache/usa/nh/USGS_one_meter_x26y481_NH_CT_RiverNorthL6_2015.tif"
],
"calculated_at": "2026-08-22T14:49:26+00:00",
"road_source": "OpenStreetMap (local PBF extract)",
"road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
"osm_ids": [
18861539,
715216983,
172651889,
1273152494,
172651897
],
"osm_versions": {
"18861539": 9,
"715216983": 3,
"172651889": 3,
"1273152494": 1,
"172651897": 6
},
"osm_timestamps": {
"18861539": "2021-09-03 07:30:28+00:00",
"715216983": "2025-04-22 11:42:26+00:00",
"172651889": "2022-10-24 13:41:04+00:00",
"1273152494": "2024-04-16 17:48:29+00:00",
"172651897": "2025-08-11 15:23:38+00:00"
},
"osm_retrieved_at": "2026-08-22T14:48:16+00:00",
"osm_pbf_path": "data/cache/pbf/new-hampshire-260822.osm.pbf",
"osm_snapshot": "2026-08-21T20:21:11Z",
"elevation_provider": "USGS 3DEP (The National Map)",
"elevation_licence": "Public domain \u2014 USGS 3DEP 1 m DEM, courtesy of the U.S. Geological Survey",
"elevation_dataset": "USGS 3DEP 1 m DEM, NH_CT_RiverNorthL6_2015 (collected 2015)",
"elevation_tile_ids": [
"x26y481"
],
"climb_origin": "named",
"notes": "ANNEX - state-park road from Warner (Rollins). Chain rebuilt by node adjacency 2026-08-22; the drivable road correctly ends ~1.1 km from the GNIS summit (Rollins picnic-area terminus, summit is a foot trail). Canopy honestly unavailable: NH_Coastal blocks hold no cloud points here (checked 2026-08-21).",
"canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
"license": "ODbL-1.0",
"license_url": "https://howsteep.org/licensing.html"
}