The Journals of Lewis & Clark: September 2, 1804
September 2, 1804
2nd of Sept. Sunday 1804- Set out early & proceeded on passed the Island & Came too above below a yellow Bluff on the S S. the Wind being hard from the N W. verry Cold Some rain all day much Thunder & lightning G Drewyer R. Fields Howard & Newmon Killed four fat Elk on the Isld. we had them Jurked &the Skins Stretched to Cover the Perogues water riseing, I observe Bear grass & Rhue in the Sides of the hills at Sunset the wind luled and cleared up cool- Aired the meet all in high Spirits- Shannon & the man Sent after him has not yet joind us
2 Sepr. description of a antient fortification
(1) From the river on the top of the antient fortification at this the 12 foot high 75 feet Base first Corse is from the river is S 76° W 96 yards. S 84° W. 53 yds. at this angle a kind of ravilene covering a Saleport, bearing East widing N 69 W 300 yds. passed a gate way at 280 yds. the bank lower & forming a right angle of 30 yards- two wings or mounds running from a high nold to the West of the way one 30 yards back of the other Covering the gate (at this place the mound is 15 feet 8 Inches higher than the plain forming a Glassee outwards & 105 feet base N. 32 W. 56 yards N. 20 W. 73 yards this part of the work is about 12 feet high, leavel & about 16 feet wide on the top) at the experation of this course a low irregular work in a Direction to the river, out Side of which is several ovel mounds of about 16 feet high and at the iner part of the Gouge a Deep whole across the Gauge N.
32 W 96 yds. to the Commencment of a wall of about 8 feet high N.81° W. 533 yards to a Deep pond 73 yds in Deamuter, and 200 yards further to a Saleport, where there is evident marks of its being Covered, the Same Course Contined 1030 yards to the river bottom.
One half of the first part of the Fortification is washed into the river, a Second line, has run from the Northrn extremity parrelel with the river (as it appears to have run at that time) N. 56 W. this of different hith from 4 to to 10 feet- The high land is about 3 me. from this fortress, and rise to Small mountains Say from 3 to 400 feet the high land on the opposit or North Side of the Missourie is 110 feet forming a yellow Clay bluff to the water and is leavel back as fur as can be Seen. I am informed by the inteperter & french, that they have Seen, numbers of those fortifications in different parts of this Cty. pirtcularly on the Platt Kansies and the North of this place on the river Jacque.
two Small fortifications is on the Arc Creek on the upper side 1st 1/4 of a mile up & the 2d 1/4 higher, nearly Square each angle 100 yards
2nd September Sunday 1804
Set out early and proceeded on Passed the Island and Landed on the S. S above under a yellow Clay bluff of 110 feet high, the wind blew verry hard a head from the N. W. with Some rain and verry Cold, G. Drewnyer R. Fields Newman & howard Killed four fine Elk we had the meat all jurked and the Skins Dried to Cover the Perogue, on the Side of the Bluff I observed Bear Grass & Rhue, at Sun Set the wind luled and Cleared up Cold, the high land on the L. S. is verry high, & uneaven, that on the S. S from 80 to 120 foot & is leavel back but fiew Small Streems falling into the river.
I went out and made a Survey of the antient works which is Situated in a level plain about 3 miles from the hills which are high.
A Discription of the Fortification
(1) Commenceing on the river opsid the Good Mans Island, first Course from the river is
S. 76d W. 96 yards thence
S. 84 W. 53 yards (at this angle a kind of angle or horn work)
N. 69 W. 300 yards to a high part, passing the gateway Covered by two half Circler works one back of the other lower than the main work the gate forms a right angle projecting inward
N.32 W. 56 yards
N 20 W. 73 yards This part of the work appears to have either double, or a covered way. from this Some irregular works appear to have been on mounds between this and the river with a Deep round whole in the center of a gorge formed by another angle --- (578)
This part of the work is from 10 to 15 feet 8 Inches- the mounds of various hights- the base of the work is from 75 to 105 feet, steep inward and forming a kind of Glassee out wards
the Same Cours continued i e
N. 32°W. 96 yards to the Commencement of a wall from 8 to 10 feet high this corse not on the wall but thro to the commencment of another detached
N. 81° W 1830 yards to the river & above where this bank Strikes the river is the remains of a Circular work
in this Course at 533 yards a Deep Pond of 73 yards Diameter perfectly round is in the Course of the bank which is about 8 feet high, from this Pond the bank it lowers gradually- a bank about the Same hight runs near the river, and must have joined the main work at a part which is now washed into the river, this is also perfectly Streight and widens from the main work, as the river above has washed in its banks for A great distance I cannot form an Idear How those two long works joined- where they Strike the river above, they are about 1100 yds apart, I am informed by our freench interpeters that a great number of those antint works are in Different parts of this Countrey, on the Platt River, Kansus, Jacque, Osarge Mine river &c.
Small one is on Island opposit the one I have Discribed, and two of our Party Saw two of those antient frtresses on the Pittiet Arc Creek on the upper Side near the mouth, each angle of which were 100 yards and about 8 feet high-