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Publication Extents

Not all publications have extents, not all extents are completely accurate
The National Stream Quality Accounting Network (NASQAN) - Some questions and answers
John F. Ficke, Richard O. Hawkinson
1975, Circular 719
One of the major new efforts of the U.S. Geological Survey is the National Stream Quality Accounting Network (NASQAN). This circular is intended to answer some of the frequently asked questions concerning concepts used in establishing NASQAN, its purposes, design, value, and future plans....
Thickness of overburden map, Annandale Quadrangle, Virginia
A.J. Froelich
1975, Open-File Report 75-153
Volcanic and sedimentary rocks of late Precambrian age include four formations of volcanic rocks (three newly recognized) and four formations of sedimentary rocks, with a total apparent thickness of more than 60,000 feet. The Siemens Creek Formation, composed of: thin basalt flows, and the overlying Kallander Creek Formation, composed predominantly of...
Water resources data for Montana, water year 1973; Part 2. Water quality records
Water Resources Division, U.S. Geological Survey
1975, Water Data Report MT-73-2
Water resources data for the 1973 water year for Montana include records of data for the chemical and physical characteristics of surface water. Data on the quality of surface water (chemical, temperature, and sediment) were collected from designated sampling sites at predetermined intervals such as once weekly, monthly or less...