August 07, 1806
Meriwether Lewis

It began to rain about midnight and continued with but little intermission until 10 A.M. today.  the air was cold and extreemly unpleasant.  we set out early resolving if possible to reach the Yelowstone river today which was at the distance of 83 ms. from our encampment of the last evening; the currant favoured our progress being more rapid than yesterday, the men plyed their oars faithfully and we went a good rate.   at 8 A.M. we passed the entrance of the Marthy's river [Big Muddy Creek; See April 29, 1805.] which has changed it's entrance since we passed it last year, fallling in at preasent about a quarter of a mile lower down.  at or just below the entrance of this river we meet with the first appearance of Coal birnt hills and pumicestone, these apearances seem to be coextensive.  here it is also that we find the first Elm [American Elm, Ulnus americana.] and dwarf cedar [Creeping Juniper, Juniperus horizontalis, collected in 1804 with two other juniper species.]  on the bluffs, the ash [Green Ash, Fraxinus pennsylvanica.] forst appears in the instance of one solletary tree at the Ash rapid, about the Elk rapid [Ash and Elk Fawn rapids.] and from thence down we occasionly meet with it scattered through the bottoms but it is generally small.   from Marthy's river to Milk river on the N.E. side there is a most beautifulll level plain country; the soil is much more fertile here than above.  we overtook the Feildses at noon.  they had killed 2 bear and seen 6 others, we saw and fired on two from our perogue but killed neither of them.  these bear resort the river where they lie in wate at the crossing places of the game for the Elk and weak cattle; when they procure a subject of either they lie by the carcase and keep the wolves off untill they devour it.  the bear appear to be very abundant on this part of the river.  we saw a number of buffaloe Elk &c as we passed but did not detain to kill any of them.   we also saw an unusual flight of white gulls about the size of a pegeon with the top of their heads black. [There is some conjecture between Forster's Tern, Sterna forsteri or Bonaparte's Gull, Larus philadelphia; See March 6, 1806.]    at 4 P.M. we arrived at the entrance of the Yellowstone river. [Lewis's party is now in North Dakota, where the Yellowstone enters the Missouri. Clark left his note to Lewis on August 4, 1806.]  I landed at the point and found that Capt. Clark had been encamped at this place and <was gone> from appearances had left it about 7 or 8 days.  I found a paper on a pole at the point which mearly contained my name in the hand wrighting of Capt. C.  we also found the remnant of a note which had been attatched to a peace of Elk's horns in the camp; from this fragment I learned that game was scarce at the point and musquetoes troublesome which were the reasons given for his going on; I also learnt that he intended halting a few miles below where he intended waiting my arrival.  I now wrote a note directed to Colter and Collins provided they were behind, ordering them to come on without loss of time; this note I wraped in leather and attatced onto the same pole which Capt. C. had planted at the point; this being done I instantly reimbarked and decended the river in the hope of reaching Capt. C's camp before night.  about 7 miles below the point on the S.W. shore I saw some meat that hade been lately fleased and hung on a pole; I directed Sergt. Ordway to go on shore examine the place; on his return he reported that he saw the tracks of two men which appeared so resent that he beleived they had been there today, the fire he found at the place was blaizing and appeared to have been mended up afresh or within the course of an hour past.  he found at this place a part of a Chinnook hat which my men recognized as the hat of Gibson; [The captains had purchased a number of hats made of cedar bark from Clatsop women on February 22, 1806.] from these circumstances we included that Capt. C's camp could not be distant and pursued our rout untill dark with the hope of reaching his camp in this however we were disappointed and night coming on compelled us to encamp on the N.E. shore in the next bottom above our encampment of the 23rd and 24th of April 1805. [This campsite was a few miles south of Trenton, ND.]   as we came too a herd of buffaloe assembled on the shore of which we killed a fat cow.--

August 07, 1806
John Ordway

a Showery wet morning.   we Set out as usal and procd. on verry well.    overtook the 2 Fieldses who had killed two large Silver grey bears.    we roed on fast    about 4 P.M. we arived at the mouth of the River Roshjone where we expected to have found Capt. Clark and party but found they had been here Some time and left a line that we would find them lower down [Clark left his note at the mouth of the Yellowstone (Roshjone) on August 4, 1806.]     Capt. Lewis wrote a line and left for Colter and Collins who we have reason to think is behind, directing them to follow on after us, and we procd. on     Saw Some Camps which appeared fresh 1 of which had fire at it and dry meat hanging up.   we procd. on untill dark and as we were Camping [A few miles south of Trenton, ND.] killed a buffaloe out of a gang on the bank.    the wind high this evening.

August 07, 1806
Patrick Gass

The morning was cloudy, and we set out early, after a very heavy shower of rain which fell before day light.  We proceeded on very well, and about 4 o'clock arrived at the mouth of the Yellow Stone river. [The Yellowstone River enters the Missouri River in North Dakota just east of the Montana state line.] We found that Captain Clarke had been encamped on the point some time ago [See Clark's journal for August 3-4.], and had left it. We discovered nothing to inform us where he was gone, except a few words written or traced in the sand [Clark reports he left a note on a pole in the point between the rivers.  Lewis says he found a note attached to elk antlers in the camp.], which were "W.C. a few miles farther down on the right-hand side."  Captain Lewis having left a few lines for the two men in the canoe [Colter and Collins who rejoined the expedition on August 12.], to inform them, if they are still behind, where we were gone, we continued our voyage.   At night we encamped after coming above 100 miles; and though dark, killed a fat buffaloe at the place of our encampment.

August 07, 1806
William Clark

Some hard rain this morning after daylight which wet us all. I formed a Sort of Camped and delayed untill 11 a.m. when it Stoped raining for a short time. I directed every thing put on board and proceeded on down.  the rain Continued at intervales all day tho' not hard in the evenig Saw a Bear on the bank but Could not get a Shoot at it.  at 6 P M I landed on a Sand bar on the South Side and Campd. [Clark remained at this site above Tobacco Creek, ND. until August 9th.]  Soon after we landed the wind blew very hard for about 2 hours, when it lulled a little.  the air was exceedingly Clear and Cold and not a misquetor to be Seen, which is a joyfull circumstance to the Party.