Topography by C.A. Ecklund, D.H. Rutledge, F.A. Wuopio, R.H. Moore and U.S. Forest Service. Control by U.S. Geolocal Survey and U.S. Coast and Geodetic Survey. Surveyed in 1931.
Type
image
Format
Scale: 1:125,000. Map type: TF. Polyconic projection Horizontal datum: unknown Grid note: none Vertical datum: mean sea level Contour interval on land and off shore 50 feet. image/tiff topographic maps maps contour maps relief maps quadrangle maps
Etna Siskiyou County Trinity County Shasta County California Western United States United States Geological Survey U.S. Geological Survey USGS Topographic 30 minute 1:125,000 scale Polyconic
Time Period
1931
Place
41.00000,-123.00000 41.50000,-123.00000 41.50000,-122.50000 41.00000 122.50000 California Etna USA
Source
University of Southern California [Contributing entity]
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