3 
SOME GOLD MINES AT OMEO. 
(no. 4 ON LOCALITY MAP.) 
By E. ]. Dunn, F.G.S., Director, Geological Survey . 
The Gambetta Mine. 
About 4 miles westerly from the town of Omeo (about i,8oo feet 
above sea level) is the Gambetta Reef, in schistose rock, which gives place 
to a granitic rock near the southern end of the reef. The strike of the 
schist is W. 20 degrees N. ; dip to southward, 6o degrees. The height 
above sea level is about 3,000 feet. The schist is very micaceous. The 
strike of the reef is to N. 15 degrees E. ; the dip eastward at 75 degrees. 
Along this reef a level has been driven for about 1,000 feet, and the 
quartz has been taken out to the surface, but nothing has been done 
below. A shaft is now required if any further work is to be done. 
Judging by the manner in which the ground has been worked, it must have 
been rich in the higher levels. The quartz reef ranged from a few inches 
to 2 or 3 feet wide. 
The Polar Star Mine. 
The Polar Star is a mine about 20 chains to the N.W. of the Gam¬ 
betta. Here an expensive adit has been driven about 900 feet, I am 
informed, in very hard gneissose country, to try and pick up the con¬ 
tinuation of a rich reef worked at higher levels. Nothing is being done 
here at present. For some distance in from the mouth of the adit, the 
rock was schist, then hard gneissose rocks was encountered. 
About 300 yards W. of the Gambetta is the Thistle Reef, a new dis¬ 
covery, in schist rock, which is opening up well. 
Several small reefs were formerly worked higher up the hill than the 
Gambetta. They are all deserted at present. 
In all these small reefs, the quartz is but a few inches thick—in places 
only an inch or so—but it is rich enough to pay for working. Much 
sulphide of a complex nature occurs in the reefs. 
These mines are in a neglected condition, and local capital is not 
forthcoming to open them out below the tunnels. Pumping and winding 
plant will be needed to work them. They well deserve a trial at lower 
levels. 
\_Report sent in 10th March , 1905.'] 
SOME GOLD MINES' AT CASSILIS, NEAR OMEO. 
(no. 5 on locality map.) 
By E. J. Dunn, F.G.S., Director, Geological Survey. 
King Cassilis Mine. 
The strike of the lode is a little E. of N.; the dip 62 degrees 
westward. Both the hanging-wall and the foot-wall of the lode are 
well marked. In width, the lode ranges from 3 feet to 8 feet. No. 1 
level is about 2,100 feet above sea level. The shoots of ore pitch 
