"The purpose of this report is to present the results of a condition survey performed at Wurtsmith Air Force Base (WAFB), Michigan, during 1-5 May 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities" (p. 1).

"The purpose of this report is to present the results of a condition survey performed at K. I. Sawyer Air Force Base (KISAFB), Michigan, during 24-25 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities" (p. 1).

"The purpose of this report is to present the results of a condition survey performed at Ellsworth Air Force Base (EAFB), South Dakota, during 6-9 April 1972. The three major areas of interest considered in this condition survey were the structural condition of the primary airfield pavements, the condition of pavement repairs and the types of maintenance and materials that have been used at this airfield, and any detrimental effects of frost to the pavement facilities" (p. 1).

A high sensitivity airborne radiometric and magnetic survey of the Rice Like, Iron Mountain, Eau Claire and Green Bay 1:250,000 NMTS Quadrangles within the states of Wisconsin, Michigan, and Minnesota. A total of 10,340 line miles of high sensitivity radiometric and magnetic data were collected within these quadrangles. Traverse lines were flown at a spacing of 3.125 miles in an east/west direction at a 18.375 miles seperation. All data were collected utilizing a fixed wing aircraft and over 3,500 cubic inches of Nal crystal detector. Magnetometer data were collected utilizing a high sensitivity proton magnetometer. Data were recorded digitally at 1.0 second intervals aboard the aircraft. Navigation was performed using both visual and doppler techniques. All data presented in this report as corrected profiles of all radiometric variables, magnetic data, radar and barometric altimeter data, air temperature and airborne bismuth contributions. Radiometric data presented are corrected for Comptron Scatter, altitude dependence and atmospheric Bismuth. These data are also presented on microfiche, and digital magnetic tapes. In addition, anomaly maps and inerpretation maps are presented in relating known geology or soil distribution to the corrected radiometric magnetic data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Iron Mountain quadrangle including maps documenting geophysical and geochemical data.

Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Iron Mountain quadrangle including magnetic, ancillary and radiometric data.

The following report presents engineering details, individual borehole histories and brief preliminary geologic summaries of six holes drilled in two areas of the Upper Michigan Peninsula.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Iron Mountain Quadrangle in Wisconsin and Michigan.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Iron Mountain Quadrangle in Wisconsin and Michigan.