any injury.  Accurate sketches of this interesting scene were taken by Messrs. Back and Hood.  Soon after passing this rapid we perceived the hunters running up the east side of the river to prevent us from disturbing a herd of musk-oxen which they had observed grazing on the opposite bank; we put them across and they succeeded in killing six, upon which we encamped for the purpose of drying the meat.  The country below the Rocky Defile Rapid consists of sandy plains, broken by small conical eminences also of sand, and bounded to the westward by a continuation of the mountain chain which we had crossed at the Bear Lake Portage, and to the eastward and northward at the distance of twelve miles by the Copper Mountains, which Mr. Hearne visited.  The plains are crowned by several clumps of moderately large spruces about thirty feet high.

This evening the Indians made a large fire as a signal to the Hook’s party that we had passed the TERRIFIC rapid in safety.

The position of our encampment was ascertained to be latitude 67 degrees 1 minute 10 seconds North, longitude 116 degrees 27 minutes 28 seconds West, variation of the compass 44 degrees 11 minutes 43 seconds East, dip of the needle 87 degrees 31 minutes 18 seconds.

Some thundershowers retarded the drying of the meat and our embarkation was delayed till the next day.  The hunters were sent forward to hunt at the Copper Mountains under the superintendence of Adam the interpreter who received strict injunctions not to permit them to make any large fires lest they should alarm straggling parties of the Esquimaux.

The mosquitoes were now very numerous and annoying but we consoled ourselves with the hope that their season would be short.

VISIT TO THE COPPER MOUNTAIN.

On the 11th we started at three A.M. and, as the guide had represented the river below our encampment to be full of shoals, some of the men were directed to walk along the shore, but they were assailed so violently by the mosquitoes as to be compelled to embark very soon; and we afterwards passed over the shallow parts by the aid of the poles without experiencing much interruption.  The current ran very rapidly, having been augmented by the waters of the Mouse River and several small streams.  We rejoined our hunters at the foot of the Copper Mountains and found they had killed three musk-oxen.  This circumstance determined us on encamping to dry the meat as there was wood at the spot.  We availed ourselves of this delay to visit the Copper Mountains in search of specimens of the ore, agreeably to my Instructions; and a party of twenty-one persons, consisting of the officers, some of the voyagers, and all the Indians, set off on that excursion.  We travelled for nine hours over a considerable space of ground but found only a few small pieces of native copper.  The range we ascended was on the west side of the river extending West-North-West and East-South-East.  The mountains varied in height from twelve to fifteen