Yesterday afternoon we visited a cavern a mile or two up the canyon which was cut by the wind in the hard cap zone which caps the cliffs. At the base of this zone there we found several narrow beds of still harder material distinctly separating the cap rock from the cliff tufa and at the same time forming a shelf for the large semi-circular cavern which the wind has eroded in the lower part of the cap rock itself thus
((drawing in field book))
The cavern is reached by several long ladders recently constructed in order to excavate it. There is a large round kiva excavated in the edge of the shelf and several small caves in the wall of the cavern. Corn stalks well preserved are found covered up in the floor. That is the only large natural cavern in the region and reminds one of the Mesa Verde caverns.
