Date of this Version
Pepperberg, R.V., 1910. Coal in Nebraska. Lincoln: Nebraska Geological Survey. pp. 31.
Until February, 1906, Nebraska was termed "the state without a mine," and may still be called the state with but a single mine, and yet it would be impossible to tell how much prospecting has been done, or to estimate the number of thousands of dollars that have been spent in this state trying to develop paying mines from the thin beds of coal discovered throughout various parts of the state in the Carboniferous and Cretadeous formations.