Geologic map of the main tungsten area Boulder County, Colorado /

Main Author: Colorado Geological Survey.
Other Authors: George, Russell D., 1866-, Crawford, R. D. 1873-1950.
Format: Map
Language: English
Published: [Denver] : The Survey, 1908.
A. Hoen & Co.
Physical Description: 1 map : color ; 23 x 30 cm.
Subjects:
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110 2 |a Colorado Geological Survey. 
245 1 0 |a Geologic map of the main tungsten area :  |b Boulder County, Colorado /  |c by Colorado State Geological Survey. 
246 3 |a Boulder County, Colorado. 
264 1 |a [Denver] :  |b The Survey,  |c 1908. 
264 3 |a Baltimore :  |b A. Hoen & Co. 
300 |a 1 map :  |b color ;  |c 23 x 30 cm. 
336 |a cartographic image  |b cri  |2 rdacontent. 
337 |a unmediated  |b n  |2 rdamedia. 
338 |a sheet  |b nb  |2 rdacarrier. 
507 |a Scale 1:62,500;  |b 1 in. equals 1 mile. 
500 |a Coordinates: W 105⁰33ʹ--W 105⁰21ʹ/N 40⁰02ʹ--N 39⁰55ʹ. 
500 |a Relief shown by contours and spot heights. 
500 |a Datum is mean sea level. 
500 |a "Topography by U.S. Geological Survey, culture modified by State Geological Survey." 
500 |a "Geology by R. D. George and R. D. Crawford." 
500 |a "Colorado State Geological Survey, First report, 1908." 
650 0 |a Tungsten mines and mining  |z Colorado  |z Boulder County  |v Maps. 
650 0 |a Geology  |z Colorado  |z Boulder County  |v Maps. 
655 7 |a Maps.  |2 lcgft. 
700 1 |a George, Russell D.,  |d 1866- 
700 1 |a Crawford, R. D.  |q (Ralph Dixon),  |d 1873-1950. 
710 2 |a Colorado Geological Survey.  |t Report. 
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948 |a MARCIVE Comp, 2018.03 
948 |a MARCIVE August, 2017 
948 |a MARCIVE extract Aug 5, 2017 
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995 |a Loaded with m2btab.ltiac in 2017.08 
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