Schist througheut

VERTICAL SECTION

Open cut
eta

ssS2ittiso----- SAN pores
Tay 2062

True North

PLAN oF WORKINGS

Scele of Feet
50 °

Geologice! Survey, Canece.

Figure 4. Plan and vertical section, Prince John group.

body cut in the upper adit is a lens and does not continue as deep as the
lower adit. In the case of mineral deposits such as the Prince John the
mineral zones should be explored on the surface along the strike, and if ore
minerals are found in sufficient quantity should be further explored by
diamond drills.

DALHOUSIE AND ROCK OF AGES GROUPS

The holdings of the Dalhousie Mining Company consist of the Dal-
housie and Rock of Ages groups which are on the west side of Bear river
opposite Bear lake. Mineral deposits are exposed at 2,600 feet and at
4,000 feet above sea-level. A comfortable camp has been built at the lower
showing where timber is plentiful. Development work so far has not been
extensive, but has been done in many places, so that several mineral
deposits, apparently distinct from one another, are known, but no one
deposit has been clearly outlined.

The country rocks are volcanics of the Bear River formation striking
northeast along the hillside and dipping northwestward at moderate angles.
The structure is clearly visible above timber-line, but at lower elevations
strikes and dips are rarely seen. Modifications of the general structure may
be present locally.

An area of volcanic rocks at an elevation of 2,600 feet is mineralized
with pyrite and chalcopyrite. A large open-cut exposes mineralization over