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932.0 m · net rise 107.1 m · overall 11.5% · evidence quality A (high) · Los Angeles · California

Shape: sustained — 39% of the climbing sits in a quarter of the distance; longest continuous stretch at 10%+ is 218 m.

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

Gradient ladder what do windows mean?

may continue beyond end 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: each state's road inventory records no surface for this road; the map may tell you more.

This measured gradient (11.5 % overall, 23.4 % over 25 m) is well below Micheltorena Street's popular reputation as one of LA's steepest streets (often cited at 30 %+ alongside Baxter Street and Fargo Street). The figure here is what the LiDAR shows over the traced block; nothing has been adjusted to match the reputation (Peter, 2026-09-30).

Access: Ranked 2026-09-30: famous-street hand trace, re-traced onto OSM way 30736581 (the ridge-above-Effie-St continuation, Peter's ruling over the held 14.7 % trace, climbs/us-passes-west-cities.yaml); any_length (city-street rule, Peter 2026-09-29).

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

Load the interactive map

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.

Topo (contours) Vector Aerial   © OpenStreetMap contributors · topo tiles © OpenTopoMap (CC-BY-SA) · vector tiles OpenFreeMap · aerial imagery USGS (public domain)

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

Provenance

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    "code_git_dirty": "false",
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    "analysis_config_digest": "sha256:8c94015b54267da4",
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    "region_key": "usa-ca-east",
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    "elevation_provider_key": "usa3dep",
    "authority": "usa-inventory",
    "registry_pbf": "california-2026-09-29.osm.pbf",
    "tile_index_snapshot": "sha256:c98325348ae2ec01"
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  "sample_interval_m": 1.0,
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  ],
  "elevation_crs": "EPSG:26911",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
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  ],
  "calculated_at": "2026-09-30T05:02:30+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "/root/volume/output/us-west-la-hills/block.osm.pbf",
  "osm_snapshot": "",
  "run_id": "batch-260930",
  "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, CA_LosAngeles_B23 (collected 2023-24)",
  "elevation_tile_ids": [
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  "route_summit_trim_m": 1452.5,
  "route_summit_trim_loss_m": 66.5,
  "climb_origin": "named-pass",
  "any_length": true,
  "seam_filled_samples": {
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  },
  "seam_filled_in_maximum": false,
  "canopy_source": {
    "kind": "ept_corridor_max_return",
    "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/CA_LosAngeles_1_B23",
    "ept_crs": "EPSG:3857",
    "station_coverage": 1.0,
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  },
  "structure_own_ways": 3,
  "structure_own_ways_source": "map-matched to the road network: the entry carried no way list, so the ways the route runs along were found by geometry (ukclimb.batch.own_ways_by_geometry)",
  "carriageway": {
    "stations": 44,
    "stations_resolved": 44,
    "width_median_m": 9.62,
    "width_p10_m": 7.5,
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    "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,
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    "stations_failed": 0,
    "hedge_to_hedge": {
      "status": "unavailable \u2014 no DSM raster (surface model absent or point-cloud only, which cannot serve off-line samples)"
    }
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
}