Plateau of 3rd Terrace (highest plateau in this part of mountain), 4 P.M. 28.22. Somewhat farther west, say 3 m. from eastern edge of plateau, 4.30 P.M. Bar. = 28.18.

Odometer. Wheel = 13 ft circumference

From camp on line to Pembina R crossing at St.Joe 3077 revol. = 7.57m.

From same camp to near foot of the 3rd Terrace level (lunch stop) odom. 6431 revol.= 15.83m.

From same camp to branching of Ft. Totten & boundary trails

From branching of roads to first coul& on the trail to the line camp

Camp at 10 P.M. Bar. =28.15.

8110 revol = 19.97m.

690 revol = 1.70m.

May 26. Wagons left camp about 6.30. Stayed behind to examine a bank in the coulée about half a mile off. Bank crumbling & though showing Long R. Shale impossible to say whether in place or drift. Probably both.

Followed the American trail N-Westward toward the line. It passes as close to Pembina R as possible on account of coulées & though far from the stream there. Are several very steep soft bottomed vallies to cross. As day warm very trying to the horses. Stopped at the 3rd coulée for a couple of hours to rest horses & lunch. Shortly after crossed the largest coul6 on the road. It has quite a stream over which the U.S. party have placed a little bridge.

Got to camp on line near W. bank of Pembina R after a fatiguing days work, due to heat & coul'ees.

This morning about 3 o'c a very violent thunder storm passed over. Some flashes fell very close to tents. Noticed in one instance after the Passage of flash that its course marked for an instant a row of luminous spots like beads.

The edge of the great plains may be said to be just where the Totten & U.S. Commission roads fork. East of this line clump of willows, poplars &c. West great open undulating grassy prairie. The wooded region of Pembina Mt. so called owes its existence to the protection afforded from the great prairie fires by the Pembina R & its many tributary coul&es & ravines. The wooded region in question has however suffered from local fares. The generality of the trees now seen