On top of Bryant's Bluff are four cairns, all of them torn up. The extreme limit of the scattered stone is about 20 feet; so the cairns were probably 12 to 15 feet in diameter.
At the mouth of Turkey-pen Slough, 4 miles north of Arlington, is a terrace with steep banks on two sides, next to the river and to the slough. On this stood a village. Three house sites are plainly marked by the refuse around, and there may be others; vegetation is very dense. Mussel shells and burned stones are abundant, and many flint implements have been picked up.
CAIRNS AT SUGAR TREE CAMP (11)
Six miles north of Arlington is a clubhouse known as Sugar Tree Camp. A short distance from the building is a high vertical cliff rising almost directly from the Gasconade. The top of this cliff, near the front, is of solid rock, almost bare of timber or brush, and in a row along it close to the edge are seven cairns, all now so defaced that any attempt at investigation is useless. The smallest, at one end of the row, is of the common circular form, about 12 feet in diameter. Three others seem to be of the same type; but their appearance may be due to their destruction. One is shown in plate 13, a. The other three are walled vaults. The largest, at the other end of the row, was built up like a foundation wall of sandstone slabs. It is rectangular in form, measuring on the outside 16 by 28 feet. All the walls are more or less destroyed; the small portion of one remaining is shown in plate 13, b. Two "walled-up graves" reported on the first ridge north of Sugar Tree Camp, and one reported on the first ridge south, never existed. There is a small cairn on a high peak half a mile east of the camp.
TICK CREEK CAVE
In a ravine which joins Tick Creek about 2 miles from where the latter flows into the Gasconade, and about 12 miles north of Arlington, is a large cave known as the Saltpeter Cave.
The opening is wide and high, but the mouth and floor are much obstructed by large fallen rocks and the bottom is constantly wet from wall to wall with running and seeping water.
There is another entrance to this cavern around a corner of the bluff and much higher up on its face. This opening is small and the sloping passage from it to the cavern is almost closed in places by drip formation.
It was never inhabited.