Comment by Ed. Granite from quarries in Iron County, Missouri, was used in the construction of the capitol at Springfield, Illinois, of the custom houses at St. Louis and Cincinnati, and of other important works.
St. Francis River rises in St. François County, Missouri, a few miles east of the sources of Black River. The mention of White River in the text is a slip of the pen. The whole course of the St. Francis is parallel to that of Black River and lower White River. It falls into the Mississippi at the north-east corner of Phillips County, Arkansas.
[24] The tuberous roots of the convolvulus batatas of Linnæus.—James.
[25] Now Cura Creek, which falls into the Black from the west, in north-eastern Independence County.—Ed.
[26] Strawberry River is a considerable stream, which unites with Black River on the southern line of Lawrence County. It flows from Izard County across Sharp, and the south-west portion of Lawrence. Some of the earliest settlers in this region occupied its fertile bottom lands as early as 1810-12.
The chief source of Spring River is known as the Mammoth Spring of Fulton County; it is near the Missouri boundary, in the north-eastern corner of the county. The water issues from an opening a hundred and twenty feet in circumference, at the rate of nine thousand barrels per minute. An apparent boiling is produced by gas in solution. Myatt's Creek and South Fork, branches of Spring River which are longer but convey less water, rise beyond the state line, traverse Fulton County in a south-easterly direction, and join the main stream near the Sharp County line. Thence the course is south-east across Sharp County, and along the Randolph-Lawrence county boundary to Black River.
Eleven Point River rises in Howell County, Missouri, crosses Oregon County, and thence flows south through Randolph County, Arkansas.—Ed.
[27] Big River originates in Iron County, Missouri, near the sources of Black River; it pursues a devious course, traversing Washington, St. François, and Jefferson counties, and falls into the Merameg about thirty miles above the confluence of the latter with the Mississippi.—Ed.
[28] Little Black River heads in Carter County, Missouri; it is a tributary of the Currents, although the combined stream is sometimes called Little Black.