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Service Description: This landslide inventory service contains layers pertaining to landslides and related features in Washington State. The data in the lidar-based landslide inventory is compiled using high quality lidar data and following the methods of Slaughter and others (2017). These methods closely follow, and modify where necessary, the Oregon Department of Geology and Mineral Industries (DOGAMI) protocol described in Special Paper 42 (Burns and Madin, 2009). As additional high quality lidar is obtained, and as mass movements occur, the inventory will continue to be revised and updated; because of these caveats the inventory may not contain all the mass movements within an area that mapping appears to be completed.
The landslide compilation layer contains landslides compiled from a variety of sources, spanning the past few decades. The Landslide Compilation contains landslides from the following sources: (1) Landslides that are mapped within 1:24,000-scale geologic mapping (not statewide) and our statewide 1:100,000-scale geologic map compilation; (2) a miscellaneous compilation of pre-existing landslide data from several sources, including the Washington Geological Survey, the Department of Natural Resources’ Forest Practices Division, and other federal and private entities; (3) landslides mapped as part of Watershed Analysis efforts for the Forest Practices Board; (4) reconnaissance-scale mapping of landslides associated with significant landslide events; and (5) a study of near-shore landforms along the Salish Sea.
Landslides
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Description: This landslide inventory service contains layers pertaining to landslides and related features in Washington State. The data in the lidar-based landslide inventory is compiled using high quality lidar data and following the methods of Slaughter and others (2017). These methods closely follow, and modify where necessary, the Oregon Department of Geology and Mineral Industries (DOGAMI) protocol described in Special Paper 42 (Burns and Madin, 2009). As additional high quality lidar is obtained, and as mass movements occur, the inventory will continue to be revised and updated; because of these caveats the inventory may not contain all the mass movements within an area that mapping appears to be completed.The landslide compilation layer contains landslides compiled from a variety of sources, spanning the past few decades. The Landslide Compilation contains landslides from the following sources: (1) Landslides that are mapped within 1:24,000-scale geologic mapping (not statewide) and our statewide 1:100,000-scale geologic map compilation; (2) a miscellaneous compilation of pre-existing landslide data from several sources, including the Washington Geological Survey, the Department of Natural Resources’ Forest Practices Division, and other federal and private entities; (3) landslides mapped as part of Watershed Analysis efforts for the Forest Practices Board; (4) reconnaissance-scale mapping of landslides associated with significant landslide events; and (5) a study of near-shore landforms along the Salish Sea.
Service Item Id: dfdbc1074f5a4f6f858858e1ca2a61e5
Copyright Text: Washington Geological Survey, 2023, Washington State Landslide Inventory Database-GIS data, June 2023: Washington Geological Survey Digital Data Series 29, version 1.1.
https://fortress.wa.gov/dnr/geologydata/publications/data_download/ger_portal_landslide_database.zip
Spatial Reference:
2927
(2927)
Single Fused Map Cache: false
Initial Extent:
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YMin: 659764.0792311991
XMax: 1828852.6416750334
YMax: 1249596.4169889584
Spatial Reference: 2927
(2927)
Full Extent:
XMin: 497095.43400000036
YMin: 60723.35500000417
XMax: 2551197.681036219
YMax: 1356195.9189999998
Spatial Reference: 2927
(2927)
Units: esriFeet
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Landslides
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Comments: This landslide inventory service contains layers pertaining to landslides and related features in Washington State. The data in the lidar-based landslide inventory is compiled using high quality lidar data and following the methods of Slaughter and others (2017). These methods closely follow, and modify where necessary, the Oregon Department of Geology and Mineral Industries (DOGAMI) protocol described in Special Paper 42 (Burns and Madin, 2009). As additional high quality lidar is obtained, and as mass movements occur, the inventory will continue to be revised and updated; because of these caveats the inventory may not contain all the mass movements within an area that mapping appears to be completed.The landslide compilation layer contains landslides compiled from a variety of sources, spanning the past few decades. The Landslide Compilation contains landslides from the following sources: (1) Landslides that are mapped within 1:24,000-scale geologic mapping (not statewide) and our statewide 1:100,000-scale geologic map compilation; (2) a miscellaneous compilation of pre-existing landslide data from several sources, including the Washington Geological Survey, the Department of Natural Resources’ Forest Practices Division, and other federal and private entities; (3) landslides mapped as part of Watershed Analysis efforts for the Forest Practices Board; (4) reconnaissance-scale mapping of landslides associated with significant landslide events; and (5) a study of near-shore landforms along the Salish Sea.
Subject: These data were produced to provide a repository for attribute and spatial information on landslides in Washington State.
Category:
Keywords: sag pond,movement,flow,fan,internal scarp,USA,landslide,Washington State,tension crack,margin,topple,debris flow fan,spread,hummock,mass wasting,Washington,rock,scarp,slide,fall,mass movement,inventory,earth,unstable,flank,head scarp,debris,rock fall,crack,avalanche,lidar,translational slide,crown crack,alluvial fan,geologic hazard,fissure,deposit,rotational slide,runout
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 2000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
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