August 31, 1805
William Clark

A fine morning  Set out before Sun rise, as we passed the lodges at which place I had encamped for thre nights and left 2 men, Those 2 men joined us and we proceeded on in the Same rout I decended the 21st Instant, halted 3 hours on Sammon Creek to Let our horses graze  the wind hard from the S.W. I met an Indian on horse back who fled with great Speed to Some lodges below & informed them that the Enemis were Coming down, armd with guns &c.  the inhabitents of the Lodges indisceved him, we proceeded on the road on which I had decended as far as the 1st run [Tower Creek] below & left the road & Proceeded up the Run in a tolerable road 4 miles & Encamped in Some old lodjes at the place the road leaves the Creek and assends the high Countrey [Having crossed to the east side of the Lemhi, they proceeded down that river to the Salmon, traveled down that river and headed up Tower Creek. The campsite was four miles up the creek.]  Six Indians followed us four of them the Sons of our guide; our hunters killed one Deer a goose & Prarie fowl. This day warm and Sultrey, Praries or open Valies on fire in Several places--  The Countrey is Set on fire for the purpose of Collecting the different bands, and a Band of the Flatheads to go to the Missouri where They intend passing the winter near the Buffalow  Proceeded on 22 miles to Day, 4 miles of which up a run

[Remarks]

[August] 1st Left the party and proceeded on a head
6th Rejoin the party at 11 A M
7th Thunder shower last evening from the N W.  The river which we are now ascending is so inconsiderable and the curant So much on a Stand that I relinquished paying further attention to it's State
8th a thunder Shower last evening.
9th Encamped below the Forks Jefferson River  Set out on a party of discovery
10th rain  Commenced at 6 P. M and continued Showery through out the night. Musqueters bad.
11th heavy Dew last evening  killed a long tailed grouse.
12th Saw a Snake Indian in Snake Indian Cove at 1 OC. P.M. [This actually occurred on August 11.]
13th very cold last night.  passed the dividing ridge to the waters of Columbia river
14th met with the Snake Indians, visit their camp [Clark notes, "Capt Lewis arrived at the Snake Indian camp on C[olumbia.]"]
15th remarkably cold this morning
16th Capt Lewis Join with the Snake Indians at the forks
18th Capt. Clark sets out with the Indians and 11 men
19th ice on Standing water 1/8 of an inch thick.
20th hard frost last night. [Clark adds, "I arrive at the Snake Indian village on the waters of Columbia River."]
21st ice 1/2 an inch thick on standing water. Most astonishing difference between the hight of the Murcury at Sun rise and at 4 P.M. today  there was 59o and this in the Space of 8 hours, yet we experience this wonderfull transicion without feeling it near so Sensibly as I should have expected.
22nd Snow yet appears on the summits of the mountains.  the Indians arrive at 12 OC
23rd white frost this morning
24th Set out with the Indians and pack horses for the Columbia River
25th white frost this morning [Clark writes, "I proceeded down the river 70 miles & Set out on my return."]
26th hard white frost and some ice on standing water this morning  arrived with baggage and party on the Columbia river at 5 P.M.
27th hard frost white this morning. [Clark says, "on the Columbian waters."]
29th Capt Clark joins me at the upper Indian village [Clark's version is, "I rejoin the party at the Snake Indian village & purchase horses."]
30th Set out with the party by land at 2 P.M. [Clark writes, "Set out with the party from Snake Indian village."]

August 31, 1805
John Ordway

a fare morning.  we Set out eairly and proceeded on 2 miles and passd. Several lodges of the Snake nation of Indians who Stay here to fish.  they catch Sammon in their pots and wires [weirs] which they have made of willows across the River and have more or less in them everry morng.  we bough a nomber of fine large Sammon of them and proceeded on.  one hunter on a head.  one strange Indian seen which is Supposed to be one of the flat head nation. [Salish Indian]   he ran off, and the Indians could not find him.  we then proceeded on over rough high hills. Some deep Gullies of white earth. Several of the natives followed us.   went about eight miles without water and halted at a large Spring branch [ Possibly Carmen Creek] to let our horses feed and dine ourselves. Some pitch pine on the mountains which make near the River on each Side.  the River bottoms narrow and verry much dryed up.  the Soil verry indifferent.  we proceeded on over a level Smooth plain abt. 7 miles  then passed the end of a mountain near the River where the Stone lay one on an other & holes So that the horses could Scarsely git along without breaking their legs.  we then proceeded on to a large Creek [Tower Creek] which falls in on the East Side of the River.  we took a path up Sd. Creek and proceeded on  found wild or choke cherrys along the branch.  also Servis berrys which were ripe.  we Came [blank] miles this day and Camped at Some Indian lodges near the Creek.  one of the hunters killed a deer at dusk and brought it to Camp after dark.--

August 31, 1805
Patrick Gass

They all came down to our camp, and we proceeded on with 27 horses and one mule. Our old guide after consulting with the rest of the Indians, thought it was better to go along the north side of the Columbia, then on the south side. We therefore proceeded down, the same way Captain Clarke had been before, 30 miles, and then turned up a creek that comes in from the north [Boyles Creek], and encamped on it about 3 miles and an half from the mouth. Two hunters had gone on ahead this morning, and at night joined us, having killed one deer. The first cost of the articles, which had been given for each horse, did not amount to more than from three to five dollars; so that the whole of them only cost about one hundred dollars.

August 31, 1805
Joseph Whitehouse

a fine morning.   we Set out eairly and proceeded on 2 miles    passed Several Indian lodges where we bought a nomber of fine Salmon.    the natives have wires [weirs] fixed across the River in which they catch more or less every night.   a Strange Indian came in Side of these lodges who they expected to be one of the nation called the flat heads. [Also known as Salish Indians; See September 4, 1805.]   he ran as Soon as he Saw us   Several of these natives followed after him.   we went on a Short distance further crossed the River and halted for breakfast.   one man out a hunting.   2 men Sent to Some other Indian Camps, with Some articles to buy Some more Sammon, but they had moved their Camps and we got none.   we then proceeded on over rough hills Some of them high & Steep, deep Gullies and white earth which had been washed down by rains &c.   went about eight miles and halted to bate our horses and dine.   4 or five of the natives follow us.    Some pitch pine on the Mountains which make near the River on each Side.   we proceeded on over a Smooth plain about 7 miles and passed along [th]e Side of a mountain near the River, [The Salmon River, which the party considered to be the same as the Lemhi, calling both Lewis' River.] where the Stone lay one [up]on an other and full of holes, [Lava Rock] So that it is allmost impossable for horses to pass without breaking their leggs.   we then passed along the end of the mountain.   Come to a large creek [Tower Creek which flows into the Salmon River.] which falls in on the East Side.    we followed up this creek or Spring branch.   found pleanty of wild or choke cherries nd Servis berrys.   One of the hunters killed a Deer at the edge of the evening.   we Came [blank] Miles this day and Camped [A few miles above the mouth of Tower Creek.] at the Creek where we had Several good Indian lodges to Sleep in this night.

August 31, 1805
Joseph Whitehouse

We had a fine morning, & set out early, and proceeded on about 2 miles, and passed several Indian lodges, and met with some Snake Indians, from whom we purchased for trifles a number of fine Salmon, the Natives have Wares fixed across the Columbia River, in which they catch more or less of them every night--.   A strange Indian came in sight of the lodges, which we past; which the Snake Indians thought was one of the Nation of Indians, which they called the flatt head nation:--   he ran as soon as he saw us; and several of the Snake Indians followed him, We proceeded on a short distance, and crossed the Columbia River, where we halted to break fast.  One of our party was sent out this morning a hunting, and two others of our party was sent to the Indian Camp with some articles to purchase some Salmon,-- but the Indians had removed their Camps, & they got none.   We proceeded on our way, and crossed over some rough hills, some of them very steep, & passed through some deep Vallies, which had white earth in them, which was occasioned by the Earth being washed down from the Hills of that Collour.--

We went about eight miles & halted to rest our horses & to dine, where some of the Natives followed us.   We saw some Pitch pine trees which grew on the Mountains which make near to the River on each side of it.   We proceeded on & passed through a smooth plain about 7 Miles & along the side of a mountain; which lay near the River, where the Stones lay very pleanty, & the place full of holes, & where we found it almost impossible, for our horses to pass, without breaking their legs.   We passed along the Edge of this mountain with great difficulty, & came to a large Creek, which falls in, on the East side of the Columbia River; we proceeded up this creek, & found plenty of wild or choak cherries and service berries.   One of our hunters killed a Deer on the Edge of the Mountain, which we had passed & which he brought to us in the evening; We came 15 Miles this day, & encamped on the Creek, where we found several Indian lodges, which we slept in