Thursday July 17th 1806. I arrose early this morning and made a drawing of the falls. after which we took breakfast and departed. it being my design to strike Maria's river about the place at which I left it on my return to it's mouth in the begining of June 1805. I steered my course through the wide and level plains which have somewhat the appearance of an ocean, not a tree nor a shrub to be seen. the land is not fertile, at least far less so, than the plains of the Columbia or those lower down this river, it is a light coloured soil intermixed with a considerable proportion of coarse gravel without sand, when dry it cracks and appears thursty and is very hard, in it's wet state, it is as soft and slipry as so much soft soap the grass is naturally but short and at present has been rendered much more so by the graizing of the buffaloe, the whole face of the country as far as the eye can reach looks like a well shaved bowlinggreen, in which immence and numerous herds of buffaloe were seen feeding attended by their scarcely less numerous sheepherds the wolves. we saw a number of goats as usual today, also the party coloured plover with the brick red head and neck; this bird remains about the little ponds which are distributed over the face of these plains and here raise their young. we killed a buffaloe cow as we passed throug the plains and took the hump and tonge which furnish ample rations for four men one day. at 5 P.M. we arrived at rose rivers where I purposed remaining all night as I could not reach maria's river this evening and unless I did there would be but little probability of our finding any wood and very probably no water either. on our arrival at the river we saw where a wounded and bleading buffaloe had just passed and concluded it was probable that the indians had been runing them and were near at hand. the Minnetares of Fort de prarie and the blackfoot indians rove through this quarter of the country and as they are a vicious lawless and reather an abandoned set of wretches I wish to avoid an interview with them if possible. I have no doubt but they would steel our horses if they have it in their power and finding us weak should they happen to be numerous wil most probably attempt to rob us of our arms and baggage; at all events I am determined to take every possible precaution to avoid them if possible. I hurried over the river to a thick wood and turned out the horses to graize; sent Drewyer to pursue and kill the wounded buffaloe in order to determine whether it had been wounded by the indians or not, and proceeded myself to reconnoitre the adjacent country having sent R. Fields for the same purpose a different rout. I ascended the river hills and by the help of my glass examined the plains but could make no discovery, in about an hour I returned to camp, where I met with the others who had been as unsuccessfull as myself. Drewyer could not find the wounded buffaloe. J. Fields whom I had left at camp had already roasted some of the buffaloe meat and we took dinner after which I sent Drewyer and R. Fields to resume their resurches for the indians; and set myself down to record the transactions of the day. rose river is at this place fifty yards wide, the water which is only about 3 feet deep occupys about 35 yds. and is very terbid of a white colour. the general course of this river is from East to west so far as I can discover it's track through the plains, it's bottoms are wide and well timbered with cottonwood both the broad and narrow leafed speceis. the bed of this stream is small gravel and mud; it's banks are low but never overflow, the hills are about 100 or 150 feet high; it possesses bluffs of earth like the lower part of the Missouri; except the debth and valocity of it's stream and it is the Missouri in miniture. from the size of rose river at this place and it's direction I have no doubt but it takes it's source within the first range of the Rocky mountains. the bush which bears the red berry is here in great plenty in the river bottoms The spies returned having killed 2 beaver and a deer. they reported that they saw no appearance of Indians.-

[ [!-- H2 anchor --] ]

[Lewis, July 18, 1806]

Friday July 18th 1806. We set out this morning a little before sunrise ascended the river hills and continued our rout as yesterday through the open plains at about 6 miles we reached the top of an elivated plain which divides the waters of the rose river from those of Maria's river. from hence the North mountains, the South mountains, the falls mountains and the Tower Mountain and those arround and to the East of the latter were visible. our course led us nearly parrallel with a creek of Maria's river which takes it's rise in these high plains at the place we passed them; at noon we struck this creek about 6 ms. from its junction with Maria's river where we found some cottonwood timber; here we halted to dine and graize our horses. the bed of this creek is about 25 yds. wide at this place but is nearly dry at present, the water being confined to little pools in the deeper parts of it's bed. from hence downwards there is a considerable quantity of timber in it's bottom. we passed immence herds of buffaloe on our way in short for about 12 miles it appeared as one herd only the whole plains and vally of this creek being covered with them; saw a number of wolves of both speceis, also Antelopes and some horses. after dinner we proceeded about 5 miles across the plain to Maria's river where we arrived at 6 P.M. we killed a couple of buffaloe in the bottom of this river and encamped on it's west side in a grove of cottonwood some miles above the entrance of the creek. being now convinced that we were above the point to which I had formerly ascended this river and faring that a fork of this stream might fall in on the Northside between this place and the point to which I had ascended it, I directed Drewyer who was with me on my former excurtion, and Joseph Fields to decend the river early in the morning to the place from whence I had returned, and examine whether any stream fell inn or not. I keep a strict lookout every night, I take my tour of watch with the men.

[ [!-- H2 anchor --] ]

[Lewis, July 19, 1806]

Saturday July 19th 1806. Drewyer and J. Fields set out early this morning in conformity to my instructions last evening. they returned at 1/2 after 12 OCk. and informed me that they had proceeded down the river to the place from which I had returned on the ____ of June last and that it was 6 miles distant. they passed the entrance of buffaloe Creek at 2 ms. the course of the river from hence downwards as far as they were is N. 80 E. they killed 8 deer and two Antelopes on their way; most of the deer were large fat mule bucks. having completed my observation of the sun's meridian Altitude we set out, ascended the river hills having passed the river and proceeded through the open plains up the N. side of the river 20 miles and encamped. at 15 miles we passed a large creek on N. side a little above it's entrance; there is but little running water in this creek at present, it's bed is about 30 yds. wide and appears to come from the broken Mountains so called from their raggid and irregular shape there are three of them extending from east to West almost unconnected, the center mountain terminates in a conic spire and is that which I have called the tower mountain they are destitute of timber. from the entrance of this creek they bore N. 10° W. the river bottoms are usually about 1/2 a mile wide and possess a considerable quantity of timber entirely cottonwood; the underbrush is honeysuckle rose bushes the narrow leafed willow and the bush which bears the acid red berry called by the french engages grease de buff. just as we halted to encamp R. Fields killed a mule doe. the plains are beautifull and level but the soil is but thin. in many parts of the plains there are great quantities of prickly pears. saw some herds of buffaloe today but not in such quantities as yesterday, also antelopes, wolves, gees, pigeons, doves, hawks, ravens crows larks sparrows &c. the Curlooe has disappeared.

[ [!-- H2 anchor --] ]

[Lewis, July 20, 1806]

Sunday July 20th 1806 We set at sunrise and proceed through the open plain as yesterday up the North side of the river. the plains are more broken than they were yesterday and have become more inferior in point of soil; a great quanty of small gravel is every where distributed over the surface of the earth which renders travling extreemly painfull to our bearfoot horses. the soil is generally a white or whiteish blue clay, this where it has been trodden by the buffaloe when wet has now become as firm as a brickbat and stands in an inumerable little points quite as formidable to our horses feet as the gravel. the mineral salts common to the plains of the missouri has been more abundant today than usual. the bluffs of the river are about 200 feet high, steep irregular and formed of earth which readily desolves with water, slips and precipitates itself into the river as before mentioned frequentlly of the bluffs of the Missouri below which they resemble in every particular, differing essencially from those of the Missouri above the entrance of this river, they being composed of firm red or yellow clay which dose not yeald readily to the rains and a large quantity of rock. the soil of the river bottom is fertile and well timbered, I saw some trees today which would make small canoes. the timber is generally low. the underbrush the same as before mentioned. we have seen fewer buffaloe today than usual, though more Elk and not less wolves and Antelopes also some mule deer; this speceis of deer seems most prevalent in this quarter. saw some gees ducks and other birds common to the country. there is much appearance of beaver on this river, but not any of otter. from the apparent decent of the country to the North and above the broken mountains I am induced to beleive that the South branch of the Suskashawan receives a part of it's waters from the plain even to the borders of this river and from the brakes visible in the plains in a nothern direction think that a branch of that river decending from the rocky mountains passes at no great distance from Maria's river and to the N. E. of the broken mountains. the day has proved excessively warm and we lay by four hours during the heat of it; we traveled 28 miles and encamped as usual in the river bottom on it's N. side. there is scarcely any water at present in the plains and what there is, lies in small pools and is so strongly impregnated with the mineral salts that it is unfit for any purpose except the uce of the buffaloe. these animals appear to prefer this water to that of the river. the wild liquorice and sunflower are very abundant in the plains and river bottoms, the latter is now in full blume; the silkgrass and sand rush are also common to the bottom lands. the musquetoes have not been troublesome to us since we left the whitebear islands.-