"In Pike and Lincoln there are several small caves occurring in the
upper beds of Trenton Limestone, which are often very cavernous. On
Sulphur Fork of Cuivre, there is a cave and Natural Bridge, to which
parties for pleasure often resort. The bridge is tubular with twenty
feet between the walls, and is one hundred feet long."

"At J.P. Fisher's on Spencer Creek, Ralls County, there is a cave having
an entrance of ninety feet wide by twenty feet high. The Lower Trenton
beds occupy the floor, with the upper cavernous beds above. On the
bluff, at a distance of one hundred and fifty yards back, there is a
sink-hole which communicates with the cave. Within the cave is a cool,
clear spring of water, and Mr. F. said he could keep meat fresh there
for six weeks during midsummer."

"The Third Magnesian Limestone which occupies such a large portion of
Southwest Missouri, often contains very large caves. One of them, known
as Friede's cave, is six or eight miles Northwest of Rolla, on Cave
Spring Creek."

"It is said to have been explored for several miles, but I only passed
in a few hundred yards. The stalactites here are very beautiful,
assuming the structure of satin spar. A very clear stream of water
issues out. West of the Gasconade, on Clifty Creek, is a remarkable
Natural Bridge which I have elsewhere described in Geological Survey of
Missouri, 1855-71, page 16."

"Mr. Meek speaks of a large and interesting cave on Tavern Creek, in
Miller County. Dr. Shumard estimates a cave on Bryant's Fork, in Ozark
County, to be a mile and a half long."