Geologic Units (Polygons): Noyo River Watershed, California, 2000

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Abstract/Contents

Abstract: This polygon shapefile depicts lithologic contact, fault contact, and watershed boundary as line attributes for the Noyo River Watershed, which lies within the Coast Ranges physiographic province of California. The area is mountainous, with elevations ranging from sea level in the coastal area of the watershed to approximately 2,850 feet in the eastern headwaters portion of the watershed. Geologic units include undivided Quaternary sedimentary rocks, beach and dune sand, estuarine deposits, marine terrace deposits, older dune sands, Franciscan melange, Coastal Belt Franciscan Complex, and Coastal Belt Franciscan Complex, greenstone. The majority of the watershed is heavily forested; portions of the extreme western and southeastern portions of the watershed are grass covered. This map set was compiled from multiple sources including published maps and reports, unpublished mapping by the U.S. Geological Survey, aerial photograph mapping, and reconnaissance geologic mapping.
Purpose: Results of Noyo River Watershed Landslide Mapping Project, including geologic and geomorphic features (landslide) maps and landslide potential maps. The maps/data are useful in preparation of Timber Harvesting Plans, and for use by land managers for identifying areas of potentially unstable ground. The maps/data serve as a guide to potential problem areas where more site-specific review is required.

Type of resource	cartographic, software, multimedia
Form	Shapefile
Extent	0.429
Place	Sacramento, California, US
Publisher	California. Division of Mines and Geology
Date valid	2000
Publication date	2001
Edition	1
Language	English
Digital origin	born digital
Map data	1:24000Scale not given. ; EPSG::3309 W 123°49ʹ20ʺ--W 123°24ʹ5ʺ/N 39°31ʹ4ʺ--N 39°20ʹ15ʺW 123°49ʹ4ʺ--W 123°24ʹ19ʺ/N 39°30ʹ54ʺ--N 39°20ʹ37ʺ, Scale not given ; EPSG::4326

Creator	California. Division of Mines and Geology

WGS84 Cartographics	This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
Location	https://purl.stanford.edu/hk345qh7705

Use and reproduction: This item is in the public domain. There are no restrictions on use.
Copyright: This work is in the Public Domain, meaning that it is not subject to copyright.

Preferred citation: California Division of Mines and Geology. (2001). Geologic Units (Polygons): Noyo River Watershed, California, 2000. California Division of Mines and Geology. Available at: http://purl.stanford.edu/hk345qh7705

GIS data for the Watersheds mapping series, map set 1, Noyo River Watershed

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