Some aspects of the regional geology of south-central Oregon / George W. Walker -- Geochemical prospecting for copper in the Baker, Oregon, area / Richard G. Bowen -- History of late Tertiary mammalian fauna of the northern Great Basin / J. A. Shotwell -- The role of weathering in geomorphology / Ira S. Allison -- Geology of the Spruce Mountain Area, Elko County, Nevada / George R. Harlow -- Occurrence, description, and origin of "Oregonite" / Len Ramp -- Tertiary and quaternary faulting in southwestern Harney County, Oregon / Neil J. Maloney -- The high Cascades graben and the "mythinterpretation" of Mount Multnomah / John Eliot Allen -- Sandstone intrusions at Astoria, Oregon : their origin and structural implications / R. Kenneth Dodds -- Historical review of Astoria type locality / Betty Rae Dodds -- Welded tuff in the Danforth Formation / Ernest H. Lund -- Marine Jurassic outliers in the Juniper Mountain area of northern Malheur County, Oregon / N. S. Wagner and Howard C. Brooks -- Oil and gas exploration in Oregon / Vernon C. Newton, Jr. -- The fossil flora of Thomas Creek / Wallace Eubanks -- Indian mounds in Benton County / John E. Smith.