Note M — Chapter XI

These caches are famous in all the narratives of overland travel, whether for trade or discovery. The manner of making them is described by Captains Lewis and Clarke, as follows: they choose a dry situation, then describing a circle of some twenty inches diameter, remove the sod as gently and carefully as possible. The hole is then sunk a foot deep or more, perpendicularly; it is then worked gradually wider as it descends, till it becomes six or seven feet deep, and shaped like a kettle, or the lower part of a large still. As the earth is dug out, it is handed up in a vessel, and carefully laid upon a skin or cloth, in which it is carried away, and usually thrown into the river, if there be one, or concealed so as to leave no trace of it. A floor of three or four inches thick is then made of dry sticks, on which is thrown hay or a hide perfectly dry. The goods, after being well aired and dried, are laid down, and preserved from contact with the wall by a layer of other dried sticks, till all is stowed away. When the hole is nearly full, a hide is laid on top, and the earth is thrown upon this, and beaten down, until, with the addition of the sod first removed, the whole is on a level with the ground, and there remains not the slightest appearance of an excavation. The first shower effaces every sign of what has been done, and such a cache is safe for years.—ED.