Lidar-revised geologic map of the Des Moines 7.5' quadrangle, King County, Washington
Links
- Document: Pamphlet (pdf)
- Sheet: Map (pdf)
- Metadata:
- Read Me: Read Me (txt)
- Spatial Data:
- NGMDB Index Page: National Geologic Map Database Index Page
- Download citation as: RIS | Dublin Core
Abstract
This map is an interpretation of a modern lidar digital elevation model combined with the geology depicted on the Geologic Map of the Des Moines 7.5' Quadrangle, King County, Washington (Booth and Waldron, 2004). Booth and Waldron described, interpreted, and located the geology on the 1:24,000-scale topographic map of the Des Moines 7.5' quadrangle. The base map that they used was originally compiled in 1943 and revised using 1990 aerial photographs; it has 25-ft contours, nominal horizontal resolution of about 40 ft (12 m), and nominal mean vertical accuracy of about 10 ft (3 m). Similar to many geologic maps, much of the geology in the Booth and Waldron (2004) map was interpreted from landforms portrayed on the topographic map. In 2001, the Puget Sound Lidar Consortium obtained a lidar-derived digital elevation model (DEM) for much of the Puget Sound area, including the entire Des Moines 7.5' quadrangle. This new DEM has a horizontal resolution of about 6 ft (2 m) and a mean vertical accuracy of about 1 ft (0.3 m). The greater resolution and accuracy of the lidar DEM compared to topography constructed from air-photo stereo models have much improved the interpretation of geology, even in this heavily developed area, especially the distribution and relative age of some surficial deposits. For a brief description of the light detection and ranging (lidar) remote sensing method and this data acquisition program, see Haugerud and others (2003).
Suggested Citation
Tabor, R.W., and Booth, D.B., 2017, Lidar-revised geologic map of the Des Moines 7.5' quadrangle, King County, Washington: U.S. Geological Survey Scientific Investigations Map 3384, 17 p., 1 sheet, scale 1:24,000, https://doi.org/10.3133/sim3384.
ISSN: 2329-132X (online)
Study Area
Table of Contents
- Introduction
- Geologic Summary
- Stratigraphy and Geologic History
- Description of Map Units
- References Cited
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Lidar-revised geologic map of the Des Moines 7.5' quadrangle, King County, Washington |
| Series title | Scientific Investigations Map |
| Series number | 3384 |
| DOI | 10.3133/sim3384 |
| Year Published | 2017 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Geology, Minerals, Energy, and Geophysics Science Center |
| Description | Pamphlet: iii, 17 p.; 1 Sheet: 30.83 x 30.04 inches; Metadata; Read Me; Spatial Data |
| Country | United States |
| State | Washington |
| County | King County |
| Other Geospatial | Des Moines 7.5' quadrangle |
| Scale | 24000 |
| Online Only (Y/N) | Y |
| Additional Online Files (Y/N) | Y |
| Google Analytic Metrics | Metrics page |