Its name according to Sir Alexander Mackenzie is derived from the Crees having left suspended a stretched frog's skin in derision of the Northern Indian mode of dressing the beaver.
The part of the Missinippi in which we embarked we should have mistaken for a lake had it not been for the rapidity of the current against which we made our way.

At four P.M.we passed a long portage occasioned by a ledge of rocks three hundred yards in length over which the river falls seven or eight feet.

After crossing another portage we encamped.
On the 18th we had rain, wind, and thunder the whole day but this weather was much preferable to the heat we had borne hitherto.

We passed three portages and at six P.M.encamped on the north bank.

Below the third portage is the mouth of the Rapid River, flowing from a large lake to the southward, on which a post was formerly maintained by the North-West Company.