MINES OF BULL HILL. 
363 
The veins so far as developed are the War Eagle, striking northeast and dipping 
steeply northwest; the Ramona, striking north-northwest and dipping steeply 
east-northeast; together with several flat seams or small veins. The War Eagle 
vein would seem to be the extreme southern continuation of the Wild Horse vein 
described below, or is at least closely parallel to it. At an elevation of 10,100 feet 
the Xew York tunnel should have intersected the vein, but if it did so the vein 
has not proved profitable. The veins appear as clay seams, the vein matter con¬ 
sisting of soft brown gritty clay with small masses of pure white kaolin. Along 
the flat veins crusts of smoky comb quartz are not uncommon. 
The occurrence of the ore presents several interesting features. A large mass 
was found on the surface somewhat below the vein and almost on top of the granite- 
breccia contact. This, body of thoroughly oxidized ore, which contained values 
of about 825 per ton, had horizontal dimensions of 30 by 40 feet and was not more 
than 25 feet deep. A small bunch of ore yielding 200 tons occurred on level 1, 
on the granite-breccia contact. 
The War Eagle vein has been drifted on for a distance of 400 feet, chiefly north¬ 
east of the shaft, but does not itself contain any ore. The ore occurs for a horizontal 
distance of 200 feet along the intersection with a flat clay vein dipping about 20° 
XW. The shoot followed the intersection closely, the gold occurring chiefly in 
the flat -vein, which at most was 8 feet wide, but not extending far from the War 
Eagle vein. The flat vein, which at first was 10 feet above the level, finally dipped 
under foot. At the Ramona shaft, on the War Eagle vein, another flat vein comes 
in, also dipping 20° XW. and carrying good values at the intersection. The gold 
in the flat veins is comparatively coarse. The central clay seam may assay 8300, 
while the adjacent rock for a foot or two in width contains about 818 to the ton. 
The Ramona vein, which is 2 to 4 feet wide and very clayey, contains a pay 
shoot with very fine gold which begins 8 feet east of the intersection with the War 
Eagle vein and continues for 123 feet west-northwest, being suddenly cut off by a 
partlv open watercourse which cuts across the vein. Diminished values continued 
for a few feet beyond it, but the ore soon became unprofitable. It is believed that 
a fairlv large amount of oxidized ore containing about 86 per ton is available along 
these veins. 
RAMONA NO. 2 MINE. 
This mine is situated on the southeastern part of the Ramona claim, just east 
of the War Eagle mine. Its workings consist of an incline shaft about 200 feet 
deep and three levels, making a total development of about 800 feet. The pro¬ 
duction of the mine could not be ascertained, but it is not large. 
The workings have been driven on a basalt dike which strikes a few degrees 
west of north and has an average dip of 80°. It varies considerably in course, dip, 
and thickness, and here and there pinches out entirely. A short distance north 
of the shaft the dike crosses the breccia-granite contact, the latter lying to the 
north. The change of rock has little apparent effect on the dike. The breccia 
contains much granite and is thoroughly oxidized; the granite is shattered and 
altered, so that the contact between the two rocks can not be exactly located. 
It appears, however, to dip steeply to the north, or in other words the granite 
seems to overhang the breccia. 
