193 
about 480 feet to the western fault. Four shoots of stone were worked; 
lengths and widths being as follows :— 
s t O. I 
shoot— 
-Average length 40 feet— 
-Average 
width 
18 
inches. 
y y 
,, ,, 70 feet 
y y 
y y 
5 
feet. 
” 3 
,, ,, , 40 f^et 
y y 
y y 
20 
inches, 
;; 4 
> ) 
,, ,, 60 feet 
y y 
y y * 
3 
feet. 
The engine-house shaft was sunk to a depth of 170 feet on the underlay 
below the tunnel level. At 100 and 170 feet, drives west were put in on 
me line for about 300 feet. The reef has been worked from the surface 
down to this 170-ft. level. 
About 290 feet east of the engine house shaft another reef, the 
Landtax, junctions with the Shamrock line. At a distance of 50 feet 
from the junction this line strikes N. 20 deg. W., and dips to the east 
55 deg. On nearing the Shamrock wall the reef turns westward in an arc of 
a circle and junctions with the Shamrock line. A shoot of stone 65 feet long 
on the surface was worked to a depth of 665 feet on the underlay of the 
reef by means of a shaft with an underlay of 33 deg. S.E. A tunnel was 
also put in on the line at the level of the Shamrock tunnel. The shoot was 
5 feet wide and 43 feet long at the bottom of the shaft, and 4 ft. 6 in. 
wide at the surface. From the surface to a depth of 300 feet on the under¬ 
lay this shoot gave an average yield of 2 -oz. of gold per ton. Payable 
stone is said to have been left in the bottom of the Landtax shaft, the 
engines not being powerful enough to keep down the water. 
From the Shamrock upper tunnel a drive east was put in to the junction 
of the Landtax reef. This drive passed through a payable shoot. In order 
to work the Shamrock and Landtax reefs to greater .depths a lower tunnel 
was started in 1894. This tunnel is at a vertical depth of 348 feet 
below the upper tunnel or 478 feet below the mouth of the engine-house • 
shaft. The tunnel was driven with the intention of cutting the Shamrock 
line at its junction with the Landtax line. The tunnel was put in for a 
distance of 2,214 feet, bearing S. 31 deg. 19 min. W. Four dykes shew 
in the tunnel running parallel to the strike of the country. These dykes 
are not associated in any way with the main lines of reef. The lower 
tunnel intersects the Landtax reef at ai distance of 2,042 feet. The reef 
here is 4 feet wide., with two well-defined walls. The reef carries no 
gold at the point of intersection. It would be necessary to drive south¬ 
east along the line for about 150 feet to cut the continuation of the shoot 
worked above. 
The lower tunnel was put in for a total distance of 2,214 feet without 
cutting the Shamrock reef. According to my survey the tunnel would cut the 
reef at another 60 feet. A small quartz reef had been cut 60 feet back from 
the face of the tunnel. This was taken for the Shamrock reef and a drive 
west was put in for a distance of 674 feet. This drive is not on any 
definite line. It follows the general strike of the country rock. As a 
result of the survey, a cross-cut south-west was put in from a point near the 
end of the drive. This cross-cut has now cut the reef at a distance of 
13=; feet from the drive. The reef varies in width from 3 ft. 6 in. to 
1 feet and carries gold all through, being richest on the hanging wall side. 
The stone broken so far is estimated to average \ oz. per ton. The 
hanging wall is very well defined and has a uniform underlay from the 
surface of the lower tunnel level. The quartz is laminated and well 
mineralized, iron and arsenical pyrites being present with a little galena. 
The drive is now in 33 feet from the point where the reef was struck, and 
the stone in the face still carries good gold. 
