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Not all publications have extents, not all extents are completely accurate
Floods of May 1981 in west-central Montana
Charles Parrett, R. J. Omang, J. A. Hull, John W. Fassler
1982, Water-Resources Investigations Report 82-33
Extensive flooding occurred in west-central Montana during May 22-23, 1981, as a result of a series of rainstorms. Flooding was particularly severe in the communities of East Helena, Belt, and Deer Lodge. Although no lives were lost, total flood damages were estimated by the Montana Disaster Emergency Services Division to...
Hydrologic analysis of the upper San Pedro basin from the Mexico-United States international boundary to Fairbank, Arizona
G. W. Freethey
1982, Open-File Report 82-752
A definition of the hydrologic system of the upper San Pedro basin was obtained by developing a numerical ground-water model to evaluate a conceptual model of the system. Information on hydraulic properties of the basin fill, recharge from bordering mountain ranges, discharge by evapotranspiration, and exchange of water between aquifer...
Origin of the Mariano Lake uranium deposit, McKinley County, New Mexico
Neil S. Fishman, Richard L. Reynolds
1982, Open-File Report 82-888
The Mariano Lake uranium deposit, hosted by the Brushy Basin Member of the Jurassic Morrison Formation, occurs in the trough of an east-west trending syncline at the western end of the Smith Lake-Mariano Lake group of uranium deposits near Crownpoint, New Mexico. The orebody, which contains abundant amorphous organic material,...
Map showing the difference between the potentiometric surfaces of the Magothy Aquifer of September 1975 and September 1982 in southern Maryland
Frederick K. Mack, Judith C. Wheeler, Stephen E. Curtin
1982, Water-Resources Investigations Report 83-4283
A map was prepared that shows the net change in the potentiometric surface of the Magothy aquifer in southern Maryland from September 1975 to September 1982. The map is based on measurements from a network of 55 observation wells. During the 8-year period, the potentiometric surface was (1) lowered by...
Hydrologic data-verification management program plan
C.W. Alexander
1982, Open-File Report 82-374
Data verification refers to the performance of quality control on hydrologic data that have been retrieved from the field and are being prepared for dissemination to water-data users. Water-data users now have access to computerized data files containing unpublished, unverified hydrologic data. Therefore, it is necessary to develop techniques and...
Gulf of Mexico summary report 3 August 1982: A revision of Outer Continental Shelf oil and gas activities in the Gulf of Mexico and their onshore impacts: Gulf of Mexico summary report 2, August 1981
Kenneth J. Havran, J.D. Wiese, Karen M. Collins, Frederick N. Kurz
1982, Open-File Report 82-242
Now, and for the near future, the Gulf of Mexico will remain the most developed Outer Continental Shelf (OCS) region in the United States and the world. Virtually all production from the U.S. OCS emanates from the Gulf of Mexico. In calendar year 1981, for the two primary categories of...
An annotated key to the identification of commonly occurring and dominant genera of algae observed in the phytoplankton of the United States
Phillip E. Greeson
1982, Water Supply Paper 2079
In early 1979, a retrieval was made for all phytoplankton data contained in the computerized data file of the U. S. Geological Survey. The retrieval revealed the analytical results of 17,959 samples collected and processed between October 1973 and October 1978. Of the approximately 500 genera of freshwater algae reported...
Drainage divides, Massachusetts; Blackstone and Thames River basins
Bruce E. Krejmas, S. William Wandle
1982, Open-File Report 82-631
Drainage boundaries for selected subbasins of the Blackstone and Thames River basins in eastern Hampden, eastern Hampshire, western Norfolk, southern Middlesex, and southern Worcester Counties, Massachusetts, are delineated on 12 topographic quadrangle maps at a scale of 1:24,000. Drainage basins are shown for all U.S. Geological Survey data-collection sites and...
Generalized altitude and configuration of the water table in parts of Larimer, Logan, Sedgwick, and Weld Counties, Colorado
Ronald G. Borman, Neville G. Gaggiani
1982, Water-Resources Investigations Report 82-4055
The water table in parts of Larimer, Logan, Sedgwick, and Weld Counties, Colorado ranges from about 7,000 feet above the National Geodetic Vertical Datum of 1929 (formerly called mean sea level) in eastern Larimer County to about 3,450 feet in northeastern Sedgwick County. Water is moving to the south and...
Techniques for estimating the magnitude and frequency of floods in the Dallas - Fort Worth metropolitan area, Texas
Larry F. Land, Elmer E. Schroeder, B.B. Hampton
1982, Water-Resources Investigations Report 82-18
Equations for predicting the magnitude and frequency of floods in the Dallas-Fort Worth metropolitan area were developed from recorded data from streams with drainage areas ranging in size from 1.25 to 66.4 square miles. The U. S. Geological Survey urban rainfall-runoff model was used to generate long-term flood-discharge record for...
Geohydrology of the valley-fill aquifer in the Endicott-Johnson City area, Broome County, New York
Thomas J. Holecek, A. D. Randall, J. L. Belli, R. V. Allen
1982, Open-File Report 82-268
This report is the tenth in a series of 11 map sets depicting geohydrologic conditions in selected aquifers in upstate New York. Geohydrologic data are compiled on five maps at 1:24,000 scale. Together, the maps provide a comprehensive overview of a major valley-fill aquifer in southwestern Broome County. The maps...
Geohydrology of the valley-fill aquifer in the Sprout and Fishkill creeks area, Dutchess County, New York
Richard B. Moore, R.G. LaFleur, W. G. Stelz, J. L. Belli
1982, Open-File Report 82-81
This report is the fifth in a series of 11 map sets depicting geohydrologic conditions in selected aquifers in upstate New York. Geohydrologic data are compiled on six maps at 1:24,000 scale. Together the maps provide a comprehensive overview of a major valley-fill aquifer in southwestern Dutchess County and a...
Late Cenozoic stratigraphy and structure of the western margin of the central San Joaquin Valley, California
William R. Lettis
1982, Open-File Report 82-526
Late Cenozoic Stratigraphy Late Cenozoic deposits in the west-central San Joaquin Valley and adjacent foothills of the Diablo Range consist mainly of unconsolidated, poorly-sorted to well-sorted gravel, sand, silt and clay derived primarily from the Diablo Range and secondarily from the Sierra Nevada. Sedimentary structures, such as channeled contacts, laminated...
Geological Survey research 1981
Water Resources Division, U.S. Geological Survey
1982, Professional Paper 1275
This U.S. Geological Survey activities report includes a summary of 1981 fiscal year scientific and economic results accompanied by a list of geologic, hydrologic, and cartographic investigations in progress. The summary of results includes: (1) Mineral, (2) Water resources, (3) Engineering geology and hydrology, (4) Regional geology, (5) Principles and...
Geologic maps of the Sacramento-San Joaquin Delta, California
Brian F. Atwater
1982, Miscellaneous Field Studies Map 1401
The Sacramento-San Joaquin Delta, the arm of the San Francisco Bay estuary that reaches into the Central Valley of California, differs from typical coastal-plain deltas in three important respects.  First, rather than meeting the ocean individually and directly, all major waterways of this delta discharge via a single constricted outlet...
Potential hydrologic impacts of ground-water withdrawal from the Cape Cod National Seashore, Truro, Massachusetts
Denis R. LeBlanc
1982, Open-File Report 82-438
The hydrologic impacts of continuous ground-water withdrawals at 0.75, 1.0, and 1.24 Mgal/d (million gallons per day) from a test-well site in the Cape Cod National Seashore, Truro, Massachusetts, were evaluated with a three-dimensional finite-difference steady-state-flow digital model. The digital model was prepared during an earlier study and is only...