File:YogoDikeP420.jpg

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Description Sapphire Coulee, Yogo District, Montana. A hollow cut in limestone. The sapphire-bearing dike, which is on the right side of the view, runs in the direction of the gulch.
Date
Source Geography of the Little Belt Mountains, Montana, by Walter Harvey Weed and Louise Valentine Pirsson, 1900, United States Geological Survey, Washington DC., on the page immediately after page 420
Author Unknown authorUnknown author
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:YogoDikeP420.jpg
also {{PD-USGov-USGS}}

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Date/TimeThumbnailDimensionsUserComment
current01:57, 4 June 2012Thumbnail for version as of 01:57, 4 June 2012515 × 703 (77 KB)Materialscientistregular noise, contrast, retouching
21:53, 3 June 2012Thumbnail for version as of 21:53, 3 June 2012515 × 703 (91 KB)PumpkinSky
21:29, 3 June 2012Thumbnail for version as of 21:29, 3 June 2012526 × 818 (109 KB)PumpkinSky{{Information |Description= Sapphire Coulee, Yogo District, Montana. A hollow cut in limestone. The sapphire-bearing dike, which is on the right side of the view, runs in the direction of the gulch. |Source= ''Geography of the Little Belt Mountains, Mo...
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