Bedrock geologic map of the Castle Reef quadrangle, Teton and Lewis and Clark Counties, Montana
Melville Rhodes Mudge
1968, Geologic Quadrangle 711
Gravity map of the Trinidad quadrangle, Colorado: A contribution to the Upper Mantle Project
D. L. Peterson, Peter Popenoe, J. R. Gaca, D. E. Karig
1968, Geophysical Investigations Map 638
No abstract available....
Geologic map of the Pembroke quadrangle, Christian and Todd Counties, Kentucky
Samuel L. Moore
1968, Geologic Quadrangle 709
Geologic map of the Panola quadrangle, Estill and Madison Counties, Kentucky
Robert C. Greene
1968, Geologic Quadrangle 686
Geologic map of the Pine Grove quadrangle, Schuylkill, Lebanon, and Berks Counties, Pennsylvania
Gordon H. Wood, Thomas M. Kehn
1968, Geologic Quadrangle 691
Aeromagnetic map of the Mount Tom quadrangle and part of the Woronoco quadrangle, Hampden and Hampshire Counties, Massachusetts
Water Resources Division, U.S. Geological Survey
1968, Geophysical Investigations Map 622
No abstract available....
Geologic map of the Riepetown quadrangle, White Pine County, Nevada
Arnold Leslie Brokaw, Patrick James Barosh
1968, Geologic Quadrangle 758
Geologic map of the Exie quadrangle, Green County, Kentucky
Samuel L. Moore
1968, Geologic Quadrangle 752
No abstract available....
Transcontinental geophysical survey (35°-39° N) magnetic and bathymetric map from 63° to 74° W longitude
Isidore Zietz, H. P. Stockard, J.R. Kirby
1968, IMAP 536
No abstract available....
Geologic map of the Banty Point quadrangle, Rio Blanco County, Colorado
Henry L. Cullins, John R. Dyni
1968, Geologic Quadrangle 703
Transcontinental geophysical survey (35°-39° N) magnetic and bathymetric map from 74° to 87° W longitude
Isidore Zietz, J.R. Kirby, H. P. Stockard
1968, IMAP 535-A
No abstract available....
Geologic map of the Dundee quadrangle, Ohio County, Kentucky
Gus H. Goudarzi, Avery E. Smith
1968, Geologic Quadrangle 688
Geologic map of the Russellville quadrangle, Logan County, Kentucky
R.C. Miller
1968, Geologic Quadrangle 714
Aeromagnetic map of the Worcester South quadrangle, Worcester County, Massachusetts
Water Resources Division, U.S. Geological Survey
1968, Geophysical Investigations Map 623
No abstract available....
Aeromagnetic map of the Hot Creek Range region, south-central Nevada
Water Resources Division, U.S. Geological Survey
1968, Geophysical Investigations Map 637
No abstract available....
Aeromagnetic map of the Worthington quadrangle and parts of the Plainfield and Peru quadrangles, Berkshire and Hampshire Counties, Massachusetts
Water Resources Division, U.S. Geological Survey
1968, Geophysical Investigations Map 627
No abstract available....
Transcontinental geophysical survey (35°–39° N) magnetic map from 112° W longitude to the coast of California
Isidore Zietz, J.R. Kirby
1968, IMAP 532-A
No abstract available....
Geologic map of the Bramwell quadrangle, West Virginia-Virginia
Kenneth John Englund
1968, Geologic Quadrangle 745
Geologic map of the Pat O'Hara Mountain quadrangle, Park County, Wyoming
William Gamewell Pierce, Willis H. Nelson
1968, Geologic Quadrangle 755
Geologic map of the Bee Spring quadrangle, Edmonson and Grayson Counties, Kentucky
Benjamin Gildersleeve
1968, Geologic Quadrangle 757
Geologic map of the Spencer Hot Springs quadrangle, Lander County, Nevada
Edwin H. McKee
1968, Geologic Quadrangle 770
Geologic map of the Ackerman Canyon quadrangle, Lander and Eureka Counties, Nevada
Edwin H. McKee
1968, Geologic Quadrangle 761
Geologic map of the Saddle Mountain quadrangle, Pinal County, Arizona
Medora Louise Hooper Krieger
1968, Geologic Quadrangle 671
Geologic map of the Lookout Mountain quadrangle, Pinal County, Arizona
Medora Louise Hooper Krieger
1968, Geologic Quadrangle 670
Geologic map of part of the Johnson Hollow quadrangle, Trigg County, Kentucky
Harry Klemic, George E. Ulrich, Samuel L. Moore
1968, Geologic Quadrangle 722