drying up very fast, like all the streams & pools in the country.

Geol. In the valley of a brook about 6 m. E. of the East Fork good sections of drift, but nothing of underlying rocks to be seen. The drift brownish or greyish in colour & with many stones of all sorts imbedded roughly in it. Some appearance of imperfect stratification, & many of the stones glaciated. Found here fragments of Cretaceous Ostrea. Crystals & or gypsum showing that a great part of material derived from the Terubre [?] clays & that it cannot be far removed from its original locality. Found also some angular fragments resembling true Coal & differing from the lignite so far seen. They may be derived from the North.

Found Ashe & party at Depot. Capt A. arrived from West this evening. Visited Capt. Gregory & Dr. Coues & others of American party -who are camped near here.

Camp 538 m. point

B-26.93

T-61

Wind light W. Clear

Noon valley of Gr, 543 m.

26.87

80

If SW. it Valley E Fork Depot

8.40 PM

26.97

68

if calm it

Odometer - 1100 Creek some water in pools

1300 Creek some water in pools

2070 Creek Water ?

3270 Creek good water Noon halt

6980 East Fork Depot

July 16. Day very warm . Examined clay banks in vicinity of depot. Got various little things put right. Visited U.S. camp in evening. Great numbers of grasshoppers in the valley. Found a few small molluscs in the stream, but none living & all indeed with a rather waterworn appearance.

Camp East Fork Milk R.

8 AM

B-26.87

T.72

Wind SE. Cloudless

Noon

26.29

92 S. light Cloudless

8 PM

26.58

65

NE. Light Clear

July 17. Left camp at 8.45 & rode 3 miles up the valley of stream to examine the banks. Had a good shot at an antelope under 100 yds. but it sprung at the flash. Day again very hot & close. Got Dr. Coues to come over & look over my eggs & birds. Naming them.

Geol. The banks of the stream so far as I can see entirely composed of drift. A hard sandy clay varying in colour from yellowish grey to