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Publication Extents

Not all publications have extents, not all extents are completely accurate
Water resources data, Florida, water year 1991. Volume 3A. Southwest Florida surface water
J.E. Coffin, W.L. Fletcher
1992, Water Data Report FL-91-3A
Water resources data for the 1991 water year in Florida consist of continuous or daily discharge for 346 streams, periodic discharge for 27 streams, miscellaneous discharge for 50 streams, continuous or daily stage for 151 streams, continuous daily tide stage for 3 sites, periodic stage for 29 streams, peak discharge...
Mineral and energy resources of the BLM Roswell Resource Area, east-central New Mexico
Susan B. Bartsch-Winkler, editor(s)
1992, Open-File Report 92-261
The sedimentary formations of the Roswell Resource Area have significant mineral and energy resources. Some of the pre-Pennsylvanian sequences in the Northwestern Shelf of the Permian Basin are oil and gas reservoirs, and Pennsylvanian rocks in Tucumcari basin are reservoirs of oil and gas as well as source rocks for...
The digital geologic map of Colorado in ARC/INFO format: Part A. Documentation
Gregory N. Green
1992, Open-File Report 92-507-A
This geologic map was prepared as a part of a study of digital methods and techniques as applied to complex geologic maps. The geologic map was digitized from the original scribe sheets used to prepare the published Geologic Map of Colorado (Tweto 1979). Consequently the...
A generalized finite-difference formulation for the U.S. Geological Survey modular three-dimensional finite-difference ground-water flow model
Arlen W. Harbaugh
1992, Open-File Report 91-494
The U.S. Geological Survey's Modular Ground-Water Flow Model assumes that model nodes are in the center of cells and that transmissivity is constant within a cell. Based on these assumptions, the model calculates coefficients, called conductance, that are multiplied by head difference to determine flow between cells. Although these are...