K:^:Nrs^s city 



Review of Science and Industry, 



A MONTHLY RECORD OF PROGRESS IN 



SCIENCE, MECHANIC ARTS AND LITERATURE. 



VOL. VI. AUGUST, 1882. NO. 4. 



GEOLOGY- 



NORTH PARK, COLORADO. 



G. C. BROADHEAD. 



On the 15th day of June, 1881, we passed west from Omaha, gradually as- 

 cending the mountain slopes. Approaching Sherman we observed the geological 

 features to be very similar to those observed the year previous near Las Vegas, 

 New Mexico, evidence of the extension of the same geological uplift. The red 

 beds are seen and the " Hog-back " also seen at Las Vegas ; and at Sherman the 

 red granite is boldly prominent. 



Between Sherman and Laramie City, in the distance, are seen remarkable 

 weathering of columns of red beds capped with harder projecting strata, and away 

 up the Laramie plains, twenty-five miles south of Laramie City, are seen the bold- 

 escarpments of red strata with the snow-capped Medicine Bow range beyond. 



Laramie City, Wyoming Territory, a town of 3,000 inhabitants, is pleasantly 

 situated on Laramie plains, near Laramie River,at an elevation of 7,126 feet above 

 the sea. The Laramie plains are for about sixty by thirty miles nearly level and 

 only interrupted by occasional dry valleys, and covered with sand having a scant 

 growth of grass and some other plants. 



From Laramie City to North Park our road will take us southwesi-, up Lara- 

 mie valley and around the base of Jelm Mountain to Cummins City, or else our 



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