- Experimental and theoretical geophysics, steady heat flux through an inclined plane of arbitrary height and slope angle and its application to geothermal measurements, by Arthur H. Lachenbruch
- Stability of the west slope of Government Hill Port area of Anchorage, Alaska, an evaluation of the stability of gravel-capped bluffs of Bootlegger Cove Clay under static and seismic conditions, by David J. Varnes
- Mineral resources of the Blue Range primitive area, Greenlee County, Arizona, and Catron County, New Mexico, an evaluation of the mineral potential of the area, by James C. Ratté [and three others] ; with a section on Aeromagnetic interpretation by Gordon P. Eaton
- Phosphate rock in Colombia, a preliminary report, by James B. Cathcart and Francisco Zambrano O ; with a section on The phosphate occurrence at Turmequé by Pedro E. Mojica G
- Six new Paleozoic and Mesozoic formations in east-central Alaska, definition and description of some sedimentary rocks in the Kandik basin, by Earl E. Brabb
- Geology along the Taylor Highway, Alaska, a log describing the geology across the Yukon-Tanana Upland, Alaska, by Helen L. Foster and Terry E.C. Keith
- Geology of proposed powersites at Deer Lake and Kasnyku Lake, Baranof Island, southeastern Alaska, a geologic feasibility study of two proposed powersites on Baranof Island, Alaska, by Alexander A. Wanek and James E. Callahan
- Stratigraphy of the Albemarle Group of the Carolina slate belt in central North Carolina, by Arvid A. Stromquist and Harold W. Sundelius
- The Reany Creek Formation, Marquette County, Michigan, description of a new formation of Precambrian age in northern Michigan, by Willard P. Puffett
- The Quimby and Greenvale Cove Formations in western Maine, by Robert H. Moench
- Atomic-absorption methods of analysis useful in geochemical exploration, a compilation of atomic-absorption methods yielding data on geologic materials useful in geochemical prospecting for ore deposits, by F.N. Ward, H.M. Nakagawa, T.F. Harms, and G.H. VanSickle
- Geologic reconnaissance of possible powersites at Tyee, Eagle, and Spur Mountain Lakes, southeastern Alaska, a description of the geological factors which could affect the feasibility of three powersites on the mainland of southeastern Alaska, northeast of Ketchikan, by James E. Callahan and Alexander A. Wanek
- Geology of the Hill City quadrangle, Pennington County, South Dakota, a preliminary report : general geology of a deformed area that is underlain by Precambrian phyllites and schists and is intruded by granite and pegmatites in the central Black Hills of South Dakota, by James C. Ratté and Russell G. Wayland
- Reconnaissance geology of the Eagle A-1 and A-2 quadrangles, Alaska, a brief description of the geology of the Eagle A-1 and A-2 quadrangles, a part of the Fortymile placer gold mining country, by Helen L. Foster ; United States Department of Interior, U.S. Geological Survey
- Geology and mineral deposits of the San Cristóbal district, Villa Martin province, Potosi, Bolivia, by Herbert S. Jacobson [and seven others]
- Superficial geology of Mount Rainier National Park, Washington, by Dwight R. Crandell
- The geologic story of the Uinta Mountains, a geologic review, commemorating John Wesley Powell's historic explorations among the lofty peaks and deep canyons of the Uinta Mountains, by Wallace R. Hansen
- Probable Permian age of the Rampart Group, central Alaska, fossil collections and rock samples from a limestone bed within the volcanic sequence of the Rampart Group show that the group is probably Permian in age, by W.P. Brosgé [and three others]
- The coal-bearing group in the Nenana coal field, Alaska, by Clyde Wahrhaftig, Jack A. Wolfe, Estella B. Leopold, and Marvin A. Lanphere
- Changes in stratigraphic nomenclature in the Cretaceous system, east-central Puerto Rico, Reginald P. Briggs ; prepared in cooperation with the Commonwealth of Puerto Rico Economic Development Administration, Industrial Research Department
- Gold veins near Great Falls, Maryland, a discussion of the history of prospecting and mining the Great Falls area and a description of the gold-bearing quartz veins, by John C. Reed, Jr., and John C. Reed
- Geology and ore deposits of the central York Mountains, western Seward Peninsula, Alaska, description of the geologic structure, stratigraphy, petrology, and ore deposits of an area containing tin deposits and a new type of beryllium deposit, by C.L. Sainsbury ; United States Department of Interior, Geological Survey
- Stratigraphic nomenclature of volcanic rocks in the Jemez Mountains, New Mexico, new stratigraphic names and revisions in nomenclature of upper Tertiary and Quaternary volcanic rocks in the Jemez Mountains, by R.A. Bailey, R.L. Smith, and C.S. Ross
- Pennsylvanian formations of southwest Virginia, by Ralph L. Miller
- Serpentinite and rodingite in the Hunting Hill quarry, Montgomery County, Maryland, description of rocks exposed in the quarry near the center of the Hunting Hill ultramafite, by David M. Larrabee
- Seismic activity during the 1968 test pumping at the Rocky Mountain Arsenal disposal well, by D.B. Hoover and J.A. Dietrich
- Asbestos occurrence in the Eagle C-4 quadrangle, Alaska, by Helen L. Foster
- Clay deposits of Spokane County, Washington, a geological, mineralogical, and chemical study, by John W. Hosterman
- Coal resources of the United States, January 1, 1967, a summary and analysis of information concerning the quantity and distribution of coal in the United States, by Paul Averitt
- Use of seismic intensity data to predict the effects of earthquakes and underground nuclear explosions in various geologic settings, a summary of the various factors that determine the effects of a seismic disturbance at a particular location and their utilization in predicting these effects, by Patrick J. Barosh
- Terrestrial impact structures, a bibliography, 1965-68, by Jacquelyn H. Freeberg
- Gold investigations in Precambrian clastic and pelitic rocks, southwestern Colorado and northern New Mexico, by Fred Barker
- Paleocene and lower Eocene units in the southern part of the Piceance Creek basin, Colorado, by John R. Donnell
- Geology of the Bear Peak area, Dona Ana County, New Mexico, a study of the southern part of the San Andres Mountains, with emphasis on Paleozoic stratigraphy, by George O. Bachman and Donald A. Myers
- General and engineering geology of the northern part of Pueblo, Colorado, description of the geology of the bedrock and surficial deposits in and near Pueblo, Colo. Engineering behavior of the rocks is summarized at the end of report, by Glenn R. Scott
- Summary of Cretaceous stratigraphy in part of the McCarthy quadrangle, Alaska, by D.L. Jones and E.M. MacKevett, Jr
- Fluorite deposits of the Quinn Canyon Range, Nevada, description of fluorite ore bodies in limestone and altered volcanic rocks of Tertiary age, by C.L. Sainsbury and F.J. Kleinhampl
- New talc deposit in St. Lawrence County, New York, by, C. Ervin Brown
- Geochemical investigations of some black shales and associated rocks, by James D. Vine and Elizabeth B. Tourtelot
- Cretaceous-Tertiary boundary in New Jersey, Delaware, and eastern Maryland, by James P. Minard [and four others]
- Lead isotope guides for Mississippi Valley lead-zinc exploration, a review of correlations of isotopic compositions of ore-lead and tonnages of known ore in Mississippi Valley lead-zinc deposits, by Ralph S. Cannon, Jr., and Arthur P. Pierce
- Geology of the Oregon Buttes area, Sweetwater, Sublette and Fremont Counties, southwestern Wyoming, Investigations of an area that includes South Pass, where the historic Emigrant Trail crosses the Continental Divide, by H.D. Zeller and E.V. Stephens
- Element distribution in some trough and platform types of black shale and associated rocks, the content and association of minor elements in different black shale environments, by James D. Vine, Elizabeth B. Tourtelot, and John R. Keith
- Systematic Jointing in the western part of the anthracite region of eastern Pennsylvania, a description of a conjugate joint system in folded rocks and the determination of relative age of joint sets and other structural features, by Gordon H. Wood, Jr., Harold H. Arndt, and M. Devereux Carter
- The Chinle (Upper Triassic) and Sundance (Upper Jurassic) Formations in north-central Colorado, a description of hitherto unreported or little-understood stratigraphic and paleontologic details of marine Jurassic and Upper Triassic rocks of a scantily studied area, G.N. Pipiringos, W.J. Hail, Jr., and G.A. Izett
- Mineral resources of the San Juan primitive area, Colorado, an evaluation of the mineral potential of the area, by T.A. Steven and [and three others] ; with a section on Iron resources in the Irving Formation by Jacob E. Gair and Harry Klemic
- Element distribution in some Paleozoic black shales and associated rocks, the content and association of minor elements in different black-shale environments, by James D. Vine
- Mineral resources of the Mission Mountains primitive area, Missoula and Lake Counties, Montana, an evaluation of the mineral potential of the area, by Jack E. Harrison [and three others]
- Pecos National Monument, New Mexico, its geologic setting : a description of rocks and landscapes and their effect on man, by Ross B. Johnson
- Four new members of the Upper Cretaceous Straight Cliffs Formation in the southeastern Kaiparowits region, Kane County, Utah, description of new stratigraphic units in a coal-bearing formation of southern Utah, by Fred Peterson