DOI: https://doi.org/10.5069/G91834KD
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

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Download and Access Products: 
	1. Point Cloud Data
		opentopoID: OTLAS.062017.26913.1
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.062017.26913.1

	2. Point Cloud Data
		opentopoID: OTLAS.062017.26913.2
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.062017.26913.2

	3. Point Cloud Data
		opentopoID: OTLAS.062017.26913.3
		Data Processing: https://portal.opentopography.org/lidarDataset?opentopoID=OTLAS.062017.26913.3

	4. Raster
		opentopoID: OTSDEM.062017.26913.1
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.062017.26913.1

	5. Raster
		opentopoID: OTSDEM.062017.26913.2
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.062017.26913.2

	6. Raster
		opentopoID: OTSDEM.062017.26913.3
		Data Processing: https://portal.opentopography.org/raster?opentopoID=OTSDEM.062017.26913.3


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Collection Overview: 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 https://en.wikipedia.org/w/index.php?title=Slumgullion_Earthflow&oldid=775038032Publications associated with this dataset can be found at NCALM's Data Tracking Center

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. https://doi.org/10.5069/G91834KD.. Accessed: 2024-04-24

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

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Data Provider and Roles:
	1. National Center for Airborne Laser Mapping
	Role: Collector
	Url: https://ncalm.cive.uh.edu/

	2. National Science Foundation
	Role: Funder
	Url: https://nsf.gov/


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Total number of points: 264,163,159 pts

Area: 15.25 km^2

Point Density: 17.32 pts/m^2

Classifications: 
	Class 1 - Unclassified: 216,027,448
	Class 2 - Ground: 48,135,711
Coordinates System: 
	Horizontal: NAD83 (2011) / UTM Zone 13N Meters [EPSG: 26913]
	Vertical: NAVD88 (GEOID 12A) [EPSG: 5703]

Survey Report: https://cloud.sdsc.edu/v1/AUTH_opentopography/www/metadata/2015_184_Slumgullion_Metadata.pdf

LAS Validation Data Report: http://cloud.sdsc.edu/v1/AUTH_opentopography/www/lasReports/CO15_Lee_184.html

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Dataset Extent in KMZ format: https://portal.opentopography.org/getKml?otCollectionID=OT.062017.26913.1&download=true

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