] THE MINES. 17 



The shaft is only 700 feet deep, water having until now prohibited 

 deeper sinking. 



The breccia-granite contact is found on Guyot Hill a short distance 

 south of the Mary McKinney. The extreme spur of Raven Hill, 

 called Beacon Hill, is formed of an intrusion of phonolite in granite, 

 and about this outlying volcanic center cluster a group of veins of 

 great production and promise. On the eastern side of the hill are 

 located the Prince Albert, Gold Dollar, and others, not active pro- 

 ducers at present, while on the western side lie the El Paso, C. K. 

 & K, and Old Gold mines, with their narrow but extremely rich fis- 

 sure veins in granite, now actively and successfully worked. 



A great number of smaller mines have been worked on veins cut- 

 ting the breccia of Raven Hill. The famous Elkton mine is situated in 

 the deep hollow between Raven Hill and Battle Mountain. It has been 

 working on an exceptionally long vein, partly contained in breccia, 

 partly in granite, and generally following a ' 'basalt" dike. The produc- 

 tion approaches $6,000,000, and the depth attained is about 900 feet, 

 excessive water having formed a serious obstacle to deeper sinking. 

 Dividends amount to $1,200,000. The Moose mine, situated higher 

 up on the slope of Raven Hill, had a good ore shoot, from which 

 $500,000 was obtained. 



Continuing northwest, we soon attain the summit of Bull Hill, which 

 affords a magnificent panorama, not only of the whole camp, but of 

 a large part of the State of Colorado. Toward the east, and 5,000 feet 

 lower, spread the great plains at the foot of the Rocky Mountains; 

 westward the Sangre de Cristo, Collegiate, and Mosquito ranges a 

 snowy and jagged line of ramparts define the distant horizon. 



A multitude of small mines occupy the southwestern slope of Bull 

 Hill. On the northwestern side an area of brecciated granite appears 

 among the volcanic rocks, and in this formation is situated the Wild 

 Horse mine. This lode, which has been worked to a depth of 1,250 

 feet, has produced over $1,000,000, but is now operated only by 

 lessees. A number of smaller producers may be found on the north- 

 ern slope, toward Cameron, among them the Damon, Jerry Johnson, 

 W. P. H., and Pinnacle. 



Those who have followed this description on a map will have noticed 

 that the mines are chiefly situated on the periphery of a circular area, 

 the central part of which, comprising the upper part of Squaw Gulch, 

 has thus far yielded very little. Few strong veins have been met 

 with in this part of the breccia, but, on the other hand, the devel- 

 opments in depth are not extensive. 



On the east and southeast side of Bull Hill begins that most impor- 

 tant belt of lodes which extends southward to Victor and includes the 

 richest group of producers in the camp. A characteristic feature of 

 Bull. 25405 2 



