This reference is no doubt to old Robideaux, as no other such ruins exist, or is there any memory of them among old timers. And there are none on the line of the trail that leads through Mitchell Gap.

The naming of several gaps in the bluffs is clear. Robideaux station doubtless led to the naming of the pass of that name, and the passage through the hills to the north of the old post, toward Fort Mitchell (the pass south of A. C. Morrison's place) was formerly callid Scotts Bluff Pass. After the passing of old Robideaux, the old Mitchell Pass fell into disuse, and in fact it was never much in use. and except for horses and footmen, is now entirely abandoned. Then the big gap in Scotts Bluff, through which the daily travel had reached hundreds, came into general conversation and knowledge at Mitchell Gap, or Mitchell 1'ass, be. ,ni r hi Kurt Mitchell. .And

through this pass the streams of humankind poured in the years which followed.

Early in June, 1852, an event of more than passing moment came to the existence of Fort Mitchell. The wilderness about it, and the people at the fort, were startled by the scream of a steam whistle, and so far, as was within the knowledge of man here, there was no such thing nearer than the Missouri river.

The winter previous had 'been one of considerable severity and much snow had fallen in the mountains. The spring had turned off bright and warm, and the river presented much the same aspect as it did in June, 1908, when it will be remembered, it was full from bank to bank.