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The American Geologist. 
February, 1905 
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Long-itudinal Section of (Ijpsum Deposit Near Bowler, Montana 
clay as the first deposit. The gypsum is as pure as the 
former and the area of the bed much greater. A splendid 
outcrop of from one to two miles is shown and the bed is 
from fifteen to twenty feet thick. It is quite near the south- 
ern border of Carbon county and also of the state, and is 
only one and one-half miles from Bowler, a station on the 
Cody branch of the B. & M. railway. This is a good deposit 
and a spur from Bowler could be run to the bed with very 
little grading. It will not be long until a mill will be placed 
at this outcrop to handle this immense deposit. 
The third and by far the most promising and largest 
bed of this field, and the thickest, if not the best bed in the 
state, is located about i6 miles south and east of Bridger 
and about six miles northeast of the first outcrop, and four 
or five miles north of the second outcrop. This deposit is 
owned by Messrs. Hanley and Hough of Bridger as is also 
number two. 
This bed is an exceptionally fine one. At the southern 
outcrop its thickness is about twenty feet, and it gradually 
grows thicker to the northward until it reaches a maximum 
thickness of fifty feet. This is about one and one-half miles 
from the first southern outcrop. This maximum thickness 
continues for some distance when a gradual thinning out 
begins until about three miles north of the first outcrop, 
where the thickness is about fifteen feet. The deposit has a 
north and south strike and dips a few degrees to the south- 
west. The material is as pure and the beds as free from 
clay as any in the state. It lies immediately on the "red 
beds" or red sand and shale formation. The Red Beds in 
this region are from 400 to 600 feet thick, having a north- 
west and southeast strike and continue for many miles. The 
gypsum outcrops which cap the Red Beds may be traced for 
at least fifteen miles. The beds are undoubtedly the same 
