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USGS1982

Mineral resource potential map of the Clear Lake Roadless Area, Leon County, Florida

The only mineral material that has been produced within the Clear Lake Roadless Area is clayey sand used as fill for highway construction and for stabilizing Forest Service roads. Fuller's earth, common clay, and sand and gravel presently are produced in Leon County and in nearby counties, and limestone and peat have been produced in the past. However, no commercial deposits of these commodities exist in the Clear Lake Roadless Area. The Apalachicola National. Forest has been explored for phosphate and the region reconnoitered for heavy minerals, but no valuable deposits of either have been found. The potential for finding valuable mineral deposits or oil and gas in the Clear Lake Roadless Area is low. However, the area and nearby lands have not been thoroughly tested for oil and gas, and the possibilities for discovery cannot be ruled out.

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USGS1977

Springs of Florida

The first comprehensive report of Florida's springs, which contains both a story of the springs and a collection of facts about them, was published thirty years ago (Ferguson and others, 1947). Since then, much additional data on springs have been gathered and the current report, Springs of Florida, makes a wealth of information on springs available to the public. Springs of Florida, prepared by the U.S. Geological Survey in cooperation with the Bureau of Geology, Florida Department of Natural Resources, publishers, and the Bureau of Water Resources Management, Florida Department of Environmental Regulation, is intended to provide sufficient background information for a lucid understanding of the nature and occurrence of the springs in the State.

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