Bales

glacier to its lower ond which has probably largely removed any
important concentrations. Douglas creek has also probably been
fairly thoroughly glaciated. In recont timcs the glaciers

extended to the big bend and thus the upper section has probably
been entirely cleaned out. Below the big bend the creek is in a
canyon which has been somewhat protected from active scouring by
ice, so some gold remains and some has been carricd down from the

washing of drift from the upper part of the valley and fron

Lorne creck.

In the Lorne and Porcupine Creck sections conditions are

different. Much of the area is low and the glaciers spread out
and did not gouge so deeply into valley bottoms. Upper Lorne
creek, however, has been swept clean by westward-movine ice and
the centre and south forks by small mountain glacicrs. It has
not yet been shown that Porcupine creek in any part lies within
the gold belt and it may never have had any gold. Thus the knovm
favourable area is confined to about the lower 5 or 6 miles of
the Lorne Creek basin.

Along Lorne creek are bedded strata which in the main
dip at a low angle to the north. The north side of the valley in
the lower section, therefore, is usually steep and there is no

possibility for an old channel except the Dry Hill channel already

noted. Higher up the north side is a vertical cliff for a consider-

able distance and the south side is largely drift. Here it seems
most probable that the old channel is on eee Ota side. Upstream
from the cliff the old drainage may have been quite different from
the present and old channels may occur on either side.

In the section from below the south fork to above the
centre fork the location of the present drainage channel is
probably considerably different from that of the earlier channel.

It may be, for instance, that formerly the south fork pursued a

an