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  • Tongass Landslide Areas (Feature Layer)

    Metadata Updated: December 3, 2020

    This is a once-over landslide inventory of the Tongass National Forest. This inventory includes all mass wasting features, including talus slopes, snow avalanche fields, and snow avalanche chutes. Each of these are coded differently in the attributes. It may be necessary to exclude several polygons in this data set when using it to determine landslide rates. Most of these landslide polygons were digitized on the 1998 to 2010 orthophotos in GIS. Many of them were age bracketed using air photos back to the 1929 Navy Trimegon photos. It includes both field and photo interpreted landslides. Not all of the landslides included once-over completed in FY2017 were age bracketed. There is an associated Points feature class (Tongass_Landslide_Initiation) that represents the landslide initiation zone approximations. These points only exist for true landslides: debris avalanches, debris torrents, combination debris avalanches/torrents, slumps, rotation failures, and rock fall-initiated failures. Metadata

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

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    Dates

    Metadata Created Date December 3, 2020
    Metadata Updated Date December 3, 2020

    Metadata Source

    Harvested from USDA JSON

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 3, 2020
    Metadata Updated Date December 3, 2020
    Publisher U.S. Forest Service
    Unique Identifier Unknown
    Maintainer
    Identifier https://data-usfs.hub.arcgis.com/datasets/112e05629a304613b4fda6057225d60d_1
    Data First Published 2019-09-16
    Data Last Modified 2019-09-17
    Category geospatial
    Public Access Level public
    Bureau Code 005:96
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Homepage URL https://data-usfs.hub.arcgis.com/datasets/112e05629a304613b4fda6057225d60d_1
    License https://data-usfs.hub.arcgis.com/datasets/112e05629a304613b4fda6057225d60d_1/license.json
    Metadata Type geospatial
    Program Code 005:059
    Source Datajson Identifier True
    Source Hash ae890e6cfa3c949faef833e1e3c47576f567852c
    Source Schema Version 1.1
    Spatial -139.6362,54.6731,-130.0157,59.9924

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