Preliminary Report on the Economic Geology
of Hazelton District, British Columbia.

GENERAL STATEMENT AND ACKNOWLEDGMENTS.

The investigation of the economic geology of Hazelton district
was undertaken in the summer of 1917 with a view to stimulating the
mineral production from this easily accessible and promising district by
determining the origin, distribution, and general occurrence of the ores,
and their relations to one another, to the gangue minerals, and to the
various country rocks which enclose the veins.

A topographical survey of the district was carried on at the same time
by F. 8. Falconer of the Topographical division, for a map on a scale of
1 mile to 1 inch with 100-foot contour intervals. The completed portion
of this map is used as a base for the geological map.

_ The work was greatly facilitated by the interest and assistance of all
the mining men in the district, and acknowledgment is made particularly
to W. G. Norrie-Lowenthal of the Silver Standard, Messrs. Harris of the
Harris mines, D. W. Williams of the Rocher De Boule, H. E. Clement of
the Delta, and D. B. Morkill of the Hazelton View, for their courtesy and
assistance during the examination of the properties under their manage-
ment.

V. Dolmage, as field assistant, gave able and enthusiastic service
which is being continued in the preparation of the final report, and H. J.
James was a capable student assistant.

PREVIOUS WORK.

Geological reconnaissance work in the Hazelton district was done by
W. W. Leach in 1909 and 1910 while preparing a topographic map of the
region; his report is in the Summary Reports of the Geological Survey for
those years.

In 1911 W. Fleet Robertson made a detailed report on the mining
properties in the district, and the work has been elaborated and brought
up to date from time to time since then by J. D. Galloway and the results
published in the annual reports of the British Columbia Bureau of Mines
from 1911 to 1917. In these reports the equipment and general develop-
ment of the properties, analyses of the ores and their general occurrence
are described.

In 1912 G. 5. Malloch made a cursory examination of the ore deposits
in the vicinity of Hazelton in connexion with his work in the Groundhog
region to the north, and in the same year R. G. McConnell examined a
geological section along the Grand Trunk Pacific railway through the
district. Reports of these examinations are published in the Summary
Report of the Geological Survey for 1912.