picketed or spiked. Posts are planted in these walls, and support the timber for the roof. They are then covered with mud. In the centre is an open square, perhaps twenty-five yards each way, along the sides of which are ranged the dwellings, store rooms, smith shop, carpenter's shop, offices, &c., all fronting upon the inner area. There are two principal entrances; one at the north, the other at the south." (Op. cit., pp. 27-28.) Outside the fort proper, on the eastern side, stood the stables, and a short distance away was a field of about 4 acres where corn was planted, "by way of experiment." About 1 mile distant was a similar though smaller structure called Fort John. It was then owned and occupied by a company from St. Louis, but a few months later it was purchased by the North American Fur Company and destroyed. Such were the typical "forts," on and beyond the frontier during the past century. The Indians would gather about the fort, their skin tipis standing in clusters over the surrounding prairie. Such groups are shown in plate 24, _a_, _b_. These two very interesting photographs were made during the visit of the Indian Peace Commission to Fort Laramie in 1868, and it is highly probable the tipis shown in the pictures were occupied by some of the Indians with whom the commissioners treated. The Black Hills lay north and west of the region then occupied by the Oglala, and although it is known that the broken country was often visited and frequented by parties of Indians in quest of poles for their tipis, yet it seems doubtful if any permanent settlements ever stood within the region. Dodge, in discussing this question, said: "My opinion is, that the Black Hills have never been a permanent home for any Indians. Even now small parties go a little way into the Hills to cut spruce lodge-poles, but all the signs indicate that these are mere sojourns of the most temporary character. "The 'teepe,' or lodge, may be regarded as the Indian's house, the wickup as his tent. One is his permanent residence, the other the make-shift shelter for a night. Except in one single spot, near the head of Castle Creek, I saw nowhere any evidence whatever of a lodge having been set up, while old wickups were not unfrequent in the edge of the Hills. There is not one single teepe or lodge-pole trail, from side to side of the Hills, in any direction, and these poles, when dragged in the usual way by ponies, soon make a trail as difficult to obliterate as a wagon road, visible for many years, even though not used." (Dodge, (1), pp. 136-137.)