Gold Veins near Great Falls, Maryland
John Calvin Reed Jr., John C. Reed
1969, Bulletin 1286
Small deposits of native gold are present along an anastomosing system of quartz veins and shear zones just east of Great Falls, Montgomery County, Md. The deposits were discovered in 1861 and were worked sporadically until 1951, yielding more than 5,000 ounces of gold. The vein system and the principal veins...
Geologic map of the Verona quadrangle, north-central Kentucky
W. C. Swadley
1969, Geologic Quadrangle 819
Gold in minerals and the composition of native gold
Robert Sprague Jones, Michael Fleischer
1969, Circular 612
Gold occurs in nature mainly as the metal and as various alloys. It forms complete series of solid solutions with silver, copper, nickel, palladium, and platinum. In association with the platinum metals, gold occurs as free gold as well as in solid solution. The native elements contain the most gold,...
Geologic map of the Union quadrangle, Boone County, Kentucky
W. C. Swadley
1969, Geologic Quadrangle 779
Geologic map of the Teton Pass quadrangle, Teton County, Wyoming
Marvin L. Schroeder
1969, Geologic Quadrangle 793
Water resources of the Buffalo River Watershed, West-central Minnesota
Robert W. Maclay, L. E. Bidwell, Thomas C. Winter
1969, Hydrologic Atlas 307
The Buffalo River watershed includes two general physiographic areas – a glacial lake plain and an glacial moraine. The lake plain, which was formed by Glacial lake Agassiz more than 9,000 years ago, is extremely flat – sloping only a few feet per mile westward near the Red River of the...
Geohydrology and water utilization in the Willcox Basin, Graham and Cochise Counties, Arizona
S. G. Brown, Herbert H. Schumann
1969, Water Supply Paper 1859-F
The Willcox basin is an area of interior drainage in the northern part of Sulphur Springs Valley, Cochise and Graham Counties, Ariz. The basin comprises about 1,500 square miles, of which the valley floor occupies about 950 square miles. The basin probably formed during middle and late Tertiary time, when...
Subsea mineral resources and problems related to their development
V.E. McKelvey, J. I. Tracey, G.E. Stoertz, J. G. Vedder
1969, Circular 619
Hydrologic effects of the 1962-66 drought on Long Island, New York
Philip M. Cohen, O. Lehn Franke, N. E. McClymonds
1969, Water Supply Paper 1879-F
Natural gamma aeroradioactivity map of the Minneapolis-Saint Paul area, Minnesota-Wisconsin
S.K. Neuschel
1969, Geophysical Investigations Map 658
No abstract available....
Reconnaissance surficial geologic map of the Houlton quadrangle, Aroostook County, Maine
Louis Pavlides
1969, Open-File Report 69-194
Aeromagnetic map of the Nantasket quadrangle, Suffolk, Norfolk, and Plymouth Counties, Massachusetts
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 679
No abstract available....
Aeromagnetic strip map across the central Sierra Nevada, California
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 657
No abstract available....
Preliminary structure map of the Wilmore Quadrangle, central Kentucky
E. R. Cressman, S.V. Hrabar
1969, Open-File Report 69-62
No abstract available. ...
Aeromagnetic map of the Worcester North quadrangle, Worcester County, Massachusetts
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 668
No abstract available....
Aeromagnetic map of the Winsor Dam quadrangle, Hampshire, Worcester, and Franklin Counties, Massachusetts
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 664
No abstract available....
Aeromagnetic map of the Windsor Locks quadrangle and part of the Hartford North quadrangle, Hartford County, Connecticut
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 646
No abstract available....
Aeromagnetic map of the McGregor Lake-Tally Lake area, Flathead and Lincoln Counties, Montana
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 684
No abstract available....
Aeromagnetic map of the Newton quadrangle, Middlesex, Norfolk, and Suffolk Counties, Massachusetts
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 676
No abstract available....
Geologic map of the Charley River quadrangle, east-central Alaska
E. E. Brabb, Michael Churkin Jr.
1969, IMAP 573
Preliminary structure map of the Midway Quadrangle, central Kentucky
J. S. Pomeroy
1969, Open-File Report 69-210
No abstract available. ...
Aeromagnetic map of the Menominee-Northland area, Dickinson, Marquette, and Menominee Counties, Michigan, and Marinette County, Wisconsin.
Water Resources Division, U.S. Geological Survey
1969, Open-File Report 69-291
No abstract available. ...
Aeromagnetic map of the Belchertown quadrangle, Hampshire County, Massachusetts
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 663
Aeromagnetic map of the Kingston, Kellogg, and part of the Fernwood quadrangles, Shoshone, Benewah, and Kootenai Counties, Idaho
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 688
No abstract available....
Aeromagnetic map of the Libby and Mt. Pend Oreille quadrangles, Lincoln and Sanders Counties, Montana and Bonner County, Idaho
Water Resources Division, U.S. Geological Survey
1969, Geophysical Investigations Map 682
No abstract available....
