Gold Nining in Ontario 
‘PORCUPINE 
ON ranios rise to fame in gold mining has been spectacular. In to $65,000,000—the average grade per ton being $9.05. Production 
1910 the total production was only $42,637, while in 1925 it totalled costs dropped from $4.46 to $4.06, and net per ton recovery increased 
$30,204,545 (amount shown on chart is “less exchange”). Of this from $8.09 to $8.18 in 1925. Net profits, less taxes, were 47%, of income. 
amount Porcupine camp produced $24,887,507, and paid in dividends Thirteen miles were added to underground workings, so that Hollinger 
$7,083,464. Kirkland Lake section produced $5,404,652, and paid in now has over 100 miles of underground workings with 65 miles of under- 
dividends $1,150,000. The total dividends from the two camps amounted ground electric railways. A large crusher has been installed at the 
to $8,233,464 in 1925, and $48,380,000 to the end of 1925. 2,150 foot level and the central shaft will be equipped with facilities 
The grade of ore milled at Porcupine was $8.65 per ton from which a capable of drawing 12,000 tons daily to meet the demands of the mill, 
recovery of $8.22 was made; the grade of ore milled at Kirkland Lake now increased to 8,000 tons per day. The new hoist, the largest in 
was $15.75 per ton from which a recovery of $14.25 was made. The North America, will draw ore from the central shaft at a speed of 3,000 
main point to remember is that the total average recovery of all Ontario feet per minute. 
ores was $8.97, practically a $9.00 per ton ore. Hollinger affords employment to 3,000 men daily—809, of the 
Gold at the rate of $2,500,000 a month is at present being produced Northern miners are contented Canadians drawing a high wage and 
from the mines of Porcupine and Kirkland Lake, and it is conservatively largely owning their own homes. Very shortly Hollinger will have 
estimated that there will be an increase in production of over $5,000,000 reached the high tide of any individual gold mining property so far in 
a year for several years to come with an estimated production in 1930 the world’s history. 
of at least $50,000,000. This is a decidedly interes ting forecast, for The mid-summer, 1926, annual report of the McIntyre is expected to 
gold production on this continent outside of Canada is declining and In show ore reserves approximate to the $12,498,905 reserves estimated 
a short space of time, possibly two years, with the declining United States t June 30th last vous, . Actual measureryents and comnlete contin 
production, Canada will rank second in the gold producing countries a Jou Siz ona comDige oo 
t th 1 tion of ore reserves are only made yearly. It will be appreciated 
pl tae world. that until the new shaft, which has now reached a depth of 2,500 feet is 
A competent authority recently estimated that, based on increased down to the 3,000 foot level and station and loading facilities provided, 
milling capacity now being installed, Porcupine in two years should ore cannot be blocked out very far ahead of production because present 
produce $34,000,000 to $35,000,000 of gold yearly (which is an increase hoisting facilities do not permit. Last year McIntyre production 
of 409, over 1925 figures) and that Kirkland Lake’s production in two amounted to $3,546,637 which added to $1,115,087 of increase in their 
years should be at the rate of $9,000,000 to $10,000,000 per year, a 459 ore reserves indicated a total of $4,661,724 as the value of the ore they 
increase. developed during the year. Their grade of ore last year was $8.86 and 
Should every foot in depth of the Hollinger mine down to the 3,000 the grade will be better this year as will also the ore reserves developed, 
foot level hold up to the estimated yield of $150,000 per foot in depth notwithstanding limited hoisting capacity. 
we reach the staggering figure of $450,000,000 as the amount of gold A record is being made on the speed with which their new 4,000 foot 
Hollinger may be expected to vield to that depth. So far no decrease six compartment shaft is being sunk. To better understand the magni- 
in values is shown with depth, in fact the contrary has been the situation tude of this new shaft work, it may be stated that it will consume one 
at both Porcupine and Kirkland Lake, except of course, in the sediments. and a half million feet of B.C. squares for the timbering of the shaft alone. 
It is impossible to deal with all the properties in each of the mining It will be equipped with one of the largest and best hoists known to 
camps, but facts may be given about such important mines at Porcupine mining and, like Hollinger’s new hoist, will have a speed of 3,000 feet 
as Hollinger, McIntyre and others. Hollinger’s ore reserve has increased per minute. This new production shaft which is being sunk at the 
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