The first volume in a series of reports that follows an airborne radiometric and magnetic survey that was performed over the area covered by Santa Maria and San Luis Obispo, California. This volume describes systems used, the calibration of the systems, the data processing procedures, data display format, the interpretation rationale, and the interpretation methodology.

The second volume of a report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Santa Maria Quadrangle, in California. This report produces the data on the geology, radioactive mineral occurrences, and geophysical data interpretations.

Second report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Alturas quadrangle in California, including histograms and multi parameter profiles, with anomaly maps and flight path maps.

Second report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Chico quadrangle in California, including histograms and multi parameter profiles, with anomaly maps and flight path maps.

The second volume of a report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Eureka Quadrangle in California. This report is a result of work performed by Aero Science Division Western Geophysical Company of America through a Bendix Field Engineering Corporation Subcontract, as part of the National Uranium Resource Evaluation.

The second volume of a report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Redding Quadrangle, California.

The second volume of a report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Susanville Quadrangle, in California.

Report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Ukiah quadrangle in California, including data acquisition methods, a summary of data and outline of data presentation, area geology, and interpretation of results.

Second report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Ukiah quadrangle in California, including histograms and multi parameter profiles, with anomaly maps and flight path maps.

Report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Weed quadrangle in California, including data acquisition methods, a summary of data and outline of data presentation, area geology, and interpretation of results.

Second report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Weed quadrangle in California, including histograms and multi parameter profiles, with anomaly maps and flight path maps.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Ukiah quadrangle in California.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Ukiah quadrangle in California.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Weed quadrangle in California.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Weed quadrangle in California.

Report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Alturas quadrangle in California, including data acquisition methods, a summary of data and outline of data presentation, area geology, and interpretation of results.

Report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Chico quadrangle in California, including data acquisition methods, a summary of data and outline of data presentation, area geology, and interpretation of results.

Report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Redding quadrangle in California, including data acquisition methods, a summary of data and outline of data presentation, area geology, and interpretation of results.

Report documenting results of an airborne high-sensitivity gamma-ray spectrometer and magnetometer survey of the Susanville quadrangle in California, including data acquisition methods, a summary of data and outline of data presentation, area geology, and interpretation of results.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Alturas quadrangle in California.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Alturas quadrangle in California.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Chico quadrangle in California.

From abstract: This abbreviated data report presents results of ground water and stream/surface sediment reconnaissance in the National Topographic Map Series (NTMS) Needles 1' x 2 quadrangle. Surface sediment samples were collected at 1672 sites, at a target sampling density of one site per 13 square kilometers (five square miles). Ground water samples were collected at 49 sites. Neutron activation analysis (NAA) results are given for uranium and 16 other elements in sediments, and for uranium and 9 other elements in ground water. Mass spectrometry results are given for helium in ground water. Field measurements and observations are reported for each site. Analytical data and field measurements are presented in tables and maps.

Supplementary data containing tabulated elemental concentration data in surface sediment and ground water samples in addition to areal distribution maps, histograms, and cumulative frequency plots. Also included is sample site location data for surface and ground water samples and a user's guide. This data accompanies a report on hydrogeochemical and stream sediment reconnaissance in California and Arizona.