Slumgullion Landslide, Colorado

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OT Collection ID: OT.062017.26913.1
OT Collection Name: Slumgullion Landslide, Colorado
Short Name: CO15_Lee_184, CO15_Lee_188, CO15_Lee_191
Collection Platform: Airborne Lidar
Metadata Download:
  • ISO 19115 (Data)
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    Point Cloud (July 3)   Bulk Download     opentopoID: OTLAS.062017.26913.1

    Point Cloud (July 7)   Bulk Download     opentopoID: OTLAS.062017.26913.2

    Point Cloud (July 10)   Bulk Download     opentopoID: OTLAS.062017.26913.3

    Raster (July 3)   Bulk Download     opentopoID: OTSDEM.062017.26913.1

    Raster (July 7)   Bulk Download     opentopoID: OTSDEM.062017.26913.2

    Raster (July 10)   Bulk Download     opentopoID: OTSDEM.062017.26913.3
    Collection Overview: NCALM logo Airborne lidar was collected by NCALM for PI Dr. Hyongki Lee (University of Houston) over the Slumgullion Landslide, Colorado. This dataset includes data from survey one of three in the collection. Three surveys were conducted on July 3, 7, 10, 2015 (DOY 184, 188, 191).

    The Slumgullion Earthflow, a slow moving landslide, crawled down the valley about 700 years ago creating the 4 miles (6.4 km) long and 2,000 feet (610 m) wide mass. The earthflow lies a few miles south east of Lake City. The landmark site covers 1,291 acres (522 ha) and is owned by the US Forest Service and the Bureau of Land Management. It is "a striking example of mass wasting (the movement of large masses of earth material)." Lake San Cristobal was dammed by the earthflow. The earthflow has been moving continuously for about 300 years over older stable rock. It moves at a rate of about 7 meters (23 feet) per year.
    Slumgullion Earthflow. (2017, April 12). In Wikipedia, The Free Encyclopedia. Retrieved 16:39, June 29, 2017, from

    Dataset Acknowledgement: Lidar data acquisition and processing completed by the National Center for Airborne Laser Mapping (NCALM). NCALM funding provided by NSF's Division of Earth Sciences, Instrumentation and Facilities Program. EAR-1043051.

    Dataset Citation: Lee, H. (2015): Slumgullion Landslide, Colorado airborne lidar survey. National Center for Airborne Laser Mapping (NCALM). Distributed by OpenTopography. Accessed: 2023-03-24

    Use License: CC BY 4.0

    Dataset Keywords: ncalm, earthflow, landslide, geomorphology, colorado, hinsdale county, lidar

    Survey Date: 07/03/2015

    Publication Date: 06/30/2017
    Total number of points: 264,163,159 pts

    Area: 15.25 km2

    Point Density: 17.32 pts/m2

        Class 1 - Unclassified216,027,448
        Class 2 - Ground48,135,711

    Raster Resolution: 0.5 meter

    Coordinate System:
        Horizontal: NAD83 (2011) UTM Zone 13N [EPSG: 26913]
        Vertical: NAVD88 (GEOID 12A) [EPSG: 5703]

    Units: meter

    Survey Report: 2015_184_Slumgullion_Metadata.pdf

    LAS Validation Data Report: CO15_Lee_184.html
    Tile index in shapefile format: Download

    Dataset Extent in KMZ format: Download

    Dataset Spatial Bounds: North: 38.0167847470336°     South: 37.9741944826579°     East: -107.209741436164°     West: -107.289209317084°