130

A reliable estimate of the probable or possible amount of limonite
present cannot be made from the information available. If the deposit is
continuous over a length of 2,000 feet and has an average width of 125 feet,
it would contain several hundred thousand tons of limonite if its average
depth were 15 feet, but no evidence has been presented that the dimensions
of the deposit are as large as this and possibly the total contents are con-
siderably less than 100,000 tons.

In the annual report for 1913 of the Minister of Mines, British Col-
umbia, it is stated, page 220, that 2 miles southeast of Nicola there is
. . . . “a group of iron claims, on which (occurs) a body of unknown
extent, of hematite.’ Probably this note relates to the above -described
occurrence of limonite.

SIMILKAMEEN MINING DIVISION
(33) Lodestone Mountain, Tulameen District

Lodestone mountain is 7 miles southwest of Tulameen. The following
account has been derived from reports by C. Camsell.t

“The presence of magnetite in the rocks of Lodestone mountain has
long been known. . . . Several mining claims were at one time staked
on this ground for iron ore, but they have long since been abandoned with-
out any work having been done on them. The rock in which the magnetite
occurs is pyroxenitic (Jurassic age), which occupies a belt from 1 to 2
miles wide extending from Olivine mountain southward (for 8 miles) to
Lodestone mountain and beyond that for an unknown distance, :
Everywhere . . . . the pyroxenite carries some magnetite as an
original constituent. . . . In certain places . . . . the quantity
of magnetite increases to such an extent that the rock might be classed as
an ore of iron. . . . At these places it occurs in short, irregular veins
or in large bunches in the pryoxenite. . . . These bodies are not
connected with any system of fractures and are not secondarily deposited,
but are primary constituents of the rock. . . . Judging merely by
what is naturally exposed and the irregularity of the distribution of the
bodies in the exposures, they have little present commercial value.’’

(384 anp 35) GREENWOOD AND GRAND FORKS MINING
DIVISIONS

The large, now exhausted, deposits of low-grade copper ore at Phoenix,
near Greenwood, and elsewhere in the Boundary district? and at Franklin
camp* are characterized by the presence of abundant magnetite or hematite
or both and in some instances these minerals form large, comparatively
pure bodies. The deposits are of the “contact-metamorphic” type and
in many cases formed along the edges of bodies of limestone. Though
these deposits have not been regarded as a source of ore, their oceurrence
suggests that possibly large bodies essentially composed of iron ore may
occur in the region.

1Camsell, C.: ‘“Tulameen District, B.C.”’; Geol. Surv., Conada, Sum, Rept. 1909, pp. 114-115.
“Geology and Mineral Deposits of the Tulameen District, B.C."’; Geol. Surv., Canada, Mem. 26, p. 168 (1913).
* Brock, R. W.: Geol. Sury., Canady, Sum. Rept. 1902, pp. 103-122.

3 LeRoy, O. E.: Geol. Surv., C Mems, Nos. 19 and 21.
A « Geol, Surv., Canada, Mem. 56.