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Landslide Hazards along River Corridors - Rock fall potential / lsr rf rockfallpotential area [Washington (State)--King County]

King County · 2025 Full Details

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Full Details

Title
Landslide Hazards along River Corridors - Rock fall potential / lsr rf rockfallpotential area [Washington (State)--King County]
Description
For more information about this layer please see the GIS Data Catalog . Rock fall is a type of landslide that occurs in bedrock where single or multiple rocks are dislodged and fall from steep cliff faces. In a typical alpine setting, cliffs are located on the upper slopes of a mountain with a talus below, extending to the base of the mountain. The talus is composed of rocks that have fallen from the cliff face and accumulate below the cliff. The talus marks the limit of most rock fall from the cliff, but a few boulders that fall from the cliff travel beyond the toe of the talus. It is these outliers that can pose a hazard to adjacent development (see figure "b" below). Rock fall can be triggered by earthquakes, freeze-thaw cycles, or severe weather. Tumbling boulders falling from a cliff face are fast moving and can level virtually anything in their path.
Creator
King County
Temporal Coverage
Last Modified: 2025-11-21
Date Issued
2017-12-20
Rights
Use Constraint: King County data are made available with the understanding that they shall be used exclusively by the obtainer or their authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County.
Access Rights
Public
Format
ArcGIS DynamicMapLayer
Language
English
Date Added
August 10, 2025
Provenance Statement
The metadata for this resource was last retrieved from King County GIS Open Data on 2025-12-08.

Links

Cite and Reference

  • Citation
    King County (2017). Landslide Hazards along River Corridors - Rock fall potential / lsr rf rockfallpotential area [Washington (State)--King County]. . https://gis-kingcounty.opendata.arcgis.com/datasets/kingcounty::landslide-hazards-along-river-corridors-rock-fall-potential-lsr-rf-rockfallpotential-area (web service)
  • BTAA Geoportal Link

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