[Clark, September 1, 1804]
September 1st Satturday 1804 Mr. Dourion left his Kettle & Sent back for it &c. We Set out under a jentle Breeze from the S. (It rained half the last night) proceeded on pass the Bluffs Compsd. of a yellowish red, & brownish White Clay which is a hard as Chalk this Bluff is 170 or 180 feet high, here the High lands approach near the river on each Side, that on the S. S. not So high as that on the L. S. opposit the Bluffs is Situated a large Island Covered with timber close under the L. S. above the Isd the high land approach & form a Clift to the river on the S. S. this Clift is Called White Bear Clift one of those animals haveing been killed in a whole in it