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Magee pass. The belt probably continues southeastward toward Hastings
arm. North of Silverado mine between Stewart and mount Dolly, a
tongue of the batholith extends eastward up Barney gulch. It is not
certain, but very likely, that the tongue of the batholith is also accom-
panied by a fringing mineral belt, so that mineral deposits may occur
near it to the south, east, and north. The belt would then join with the
mineral deposits on mount Dolly.

The Porter Idaho-Prosperity veins strike north-northwest and dip
west and consequently in ascending the hillside on which they occur, they
trend north to north-northeast. If these veins continue to the Stewart
side of the mountain they should cross the mountain summit east of
Stewart and then swing west toward Stewart. This area of volcanic rock
between Barney gulch and Marmot river merits thorough prospecting.

The fissure zone crossing Glacier creek, known as the Portland
Canal fissure zone, contains many veins, and mining has been carried out
at several places in the zone. Some of the veins in the zone may be much
better than the others in the zone, but the possibility should not be over-
looked that in certain parts of the zone not only one but most of the veins
may be well mineralized. If other veins are explored in the vicinity of
the Dunwell or the Portland Canal mines, this exploration should be done
at the height above sea-level of the best ore in the mines as well as on the
surface. The Portland Canal fissure zone has not produced any high-
grade ore, but is worth careful prospecting.

The parts of Bear River ridge nearest to Premier and B.C. Silver
Mines should be prospected carefully, as it is always advisable to search
for ore deposits of any kind in the vicinity of valuable ore deposits.

Narrow, straight gullies commonly mark the outcrops of faults. If
the faults are pre-mineral in origin they may be ore-bearing. Conse-
quently gullies of this type should be prospected.

It is probable that a post-batholith and post-mineral fault having a
horizontal offset of 14 miles follows Bear river. Copper deposits similar
to those at the Red Cliff mine may then occur on the opposite side of Bear
river about 14 miles south of the Red Cliff.

On the whole the outlook for the future in both the Marmot and Bear
River parts of the area is decidedly encouraging.