Map showing lava flows in the northwest part of the Thaumasia Quadrangle of Mars
D. H. Scott, K. L. Tanaka
1981, IMAP 1273
Vegetation mapping of the National Petroleum Reserve in Alaska using Landsat digital data
L.A. Morrissey, R.A. Ennis
1981, Open-File Report 81-315
Preliminary results of coal exploratory drilling in the Book Cliffs coal field, Grand County, Utah
James Louis Gualtieri
1981, Open-File Report 81-43
Geologic map of the Gila-San Francisco Wilderness Study Area, Graham and Greenlee Counties, Arizona
D.H. Richter, Viki A. Lawrence
1981, Miscellaneous Field Studies Map 1315-A
Map showing lava flows in the southeast part of the Amazonis Quadrangle of Mars
D. H. Scott, K. L. Tanaka
1981, IMAP 1280
Geologic map of Pre-Quaternary rocks of the Salt Lake City North Quadrangle, Davis and Salt Lake counties, Utah
R. Van Horn
1981, IMAP 1330
Depositional facies, petrography, and reservoir potential of the Fortress Mountain Formation (Lower Cretaceous), central North Slope, Alaska
C. M. Molenaar, R.M. Egbert, L.F. Krystinik
1981, Open-File Report 81-967
User's guide for a general purpose dam-break flood simulation model (K-634)
Larry F. Land
1981, Water-Resources Investigations Report 80-116
An existing computer program for simulating dam-break floods for forecast purposes has been modified with an emphasis on general purpose applications. The original model was formulated, developed and documented by the National Weather Service. This model is based on the complete flow equations and uses a nonlinear implicit finite-difference numerical...
Assessment of the Santa Margarita Sandstone as a source of drinking water for the Scotts Valley area, Santa Cruz County, California
K. S. Muir
1981, Water-Resources Investigations Report 81-6
Scotts Valley, Calif., is a rural residential area with a rapidly expanding population. Its mediterranean-type climate yields an average annual rainfall of 40 inches. The Santa Margarita Sandstone is the principal aquifer in the area, supplying about 90 percent of all water for domestic purposes. Sources of recharge for the...
Hydrologic and chemical evaluation of the ground-water resources of northwest Elkhart County, Indiana
Thomas E. Imbrigiotta, Angel Martin Jr.
1981, Water-Resources Investigations Report 81-53
A 3-year study in northwest Elkhart County, Indiana, was done to (1) de-fine the general flow and quality of water in the outwash aquifer system, (2) determine if a well field proposed for a site at the Elkhart Municipal Airport would draw leachate from the Himco landfill, and (3) define...
Characterization of floodflows along the Arkansas River without regulation by Pueblo Reservoir, Portland to John Martin Reservoir, Southeastern Colorado
John R. Little, Daniel P. Bauer
1981, Water-Resources Investigations Report 80-97
The need for a method for estimating flow characteristics of flood hydrographs between Portland, Colo., and John Martin Reservoir has been promoted with the construction of the Pueble Reservoir. To meet this need a procedure was developed for predicting floodflow peaks, traveltimes, and volumes at any point along the Arkansas...
Ground-water resources of the White River basin, Madison County, Indiana
Wayne W. Lapham
1981, Water-Resources Investigations Report 81-35
The ground-water resources of the White River basin in and near Madison County, Indiana, were investigated by mapping the aquifers, estimating their hydraulic properties, determining the distribution of potentiometric head in the aquifers, and estimating some of the components of the ground-water budget from data collected in the field. This...
Land use and land cover, 1975-78, Albany, New York; Connecticut; Massachusetts; New Hampshire; Vermont
Water Resources Division, U.S. Geological Survey
1981, Land Use and Land Cover 134
Land use and land cover, 1975-76, Denver, Colorado
Water Resources Division, U.S. Geological Survey
1981, Land Use and Land Cover 118
Land use and land cover, 1972-73, Sells, Arizona
Water Resources Division, U.S. Geological Survey
1981, Land Use and Land Cover 166
Geologic structure, hydrology, and water quality of the Dawson aquifer in the Denver basin, Colorado
Stanley G. Robson, John C. Romero
1981, Hydrologic Atlas 643
Rainfall-runoff modeling and preliminary regional flood characteristics of small rural watersheds in the Arkansas River basin in Colorado
Russell K. Livingston
1981, Water-Resources Investigations Report 80-112
Both recorded and synthetic rainfall-runoff and annual peak-discharge data for 17 rural watersheds were analyzed to evaluate the magnitude, frequency, and volume of floods in the plains region of the Arkansas River basin in Colorado. Flood-frequency relations from analysis of recorded data were weighted or combined with flood-frequency relations from...
Preliminary geologic map of the Tracy quadrangle, San Joaquin County, California
T. W. Dibblee Jr.
1981, Open-File Report 81-464
A late Oligocene or earliest Miocene molluscan fauna from Sitkinak Island, Alaska
Richard C. Allison, Louie Marincovich
1981, Professional Paper 1233
Seismic intensities of earthquakes of conterminous United States– Their prediction and interpretation
J. F. Evernden, W.M. Kohler, Gary D. Clow
1981, Professional Paper 1223
No abstract available....
Shaded relief map of the Coprates Northwest Quadrangle of Mars
Water Resources Division, U.S. Geological Survey
1981, IMAP 1295
Low-flow characteristics of streams in the Deschutes River basin, Washington
J. E. Cummans
1981, Open-File Report 81-639
The purpose of the study was to determine the magnitude and frequency of low flows of streams in the Deschutes River basin.The streams in the basin usually have their low flows in August and September. Seven-day low flows were smallest in 1952 when annual rainfall at the Olympia airport was...
Jurassic (Bathonian and Callovian) ammonites in eastern Oregon and western Idaho
Ralph Willard Imlay
1981, Professional Paper 1142
Earthquake hazard evaluation in the Pacific Northwest
Robert S. Crosson
1981, Open-File Report 81-965
Preliminary maps showing interpretation of Landsat imagery of the Ugashik and Karluk quadrangles, Alaska
James R. Le Compte
1981, Open-File Report 81-776