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.

Funeral program for Mark Duane Fork.

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.

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

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

A 5 x 7 color print showing the Southern Pacific (SP) #4449, 4-8-4, streamlined steam locomotive in "Daylight" color scheme, Sacramento, CA.

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

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