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Topographic Map of the Active Part of the Slumgullion Landslide on July 31, 2000, Hinsdale County, Colorado

By James A. Messerich and Jeffrey A. Coe

U.S. Geological Survey Open-File Report 03-144

Landslide contour data shown here as shaded relief
Landslide contour data shown here as shaded relief.

Version 1.0


This Open-File Report presents a topographic map of the active part of the Slumgullion landslide on July 31, 2000. The active part of the landslide is continuously moving, therefore the topography of the landslide is continuously changing. The map was made using 1:6000-scale color, stereo aerial photographs, surveyed ground-control points, and a Kern DSR-11 analytical stereo plotter. The contour interval is 2 meters. The map provides a base for on-going and future scientific studies of the landslide.

The map itself shows spot elevations and control point elevations in meters, index and intermediate contours dashed where approximately located, contour depressions, water features and roads on four separate sheets.

Aerial photos were flown on July 31, 2000. Map compiled through photogrammetric means by the USGS Laboratory for Geologic Photogrammetry and Digital Mapping, Denver Federal Center, by James A. Messerich. GIS assistance by Paco VanSistine. Photos nominal scale 1:6,000. Colorado State Plane Coordinate System (southern zone), elevations above mean sea level North American Vertical Datum 1988.

The text of this report is presented here in Portable Document Format. The latest version of Adobe Acrobat Reader or similar software is required to view it. If you wish to download the latest version of Acrobat Reader free of charge, click here .
OFR-03-144 HTML file
(This version of the report is accessible as defined in Section 508.)
OFR-03-144 PDF file (305 KB)
For printing purposes

Map PDF file (1.48 MB)

Sheet 1 of 4 Topographic Map

Map PDF file (3.44 MB)

Sheet 2 of 4 Topographic Map

Map PDF file (3.33 MB)

Sheet 3 of 4 Topographic Map

Map PDF file (4.04 MB)

Sheet 4 of 4 Topographic Map
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