The U. S. Geological Survey's Manned Lunar Exploration Investigations carried out during the second half of Fiscal Year 1965 concept studies for Apollo and for AES exploration, and shirt-sleeve field tests of geologic operations for Apollo exploration. Three Apollo field tests were carried out late in the spring using communications and television systems, a simple LEM mock-up, and other equipment such as a surveying staff and one and two-handed sample and instrument carriers. Structure of the Manned Lunar Exploration Investigations was temporarily reorganized (pending complete reorganization for FY 66) late in the period to identify a number of the work areas of responsibility that had come into being (Figure 1). A lunar exploration matrix for Apollo, AES, MOLAB and LESA exploration has been compiled to illustrate concepts of lunar surface exploration, and the need for a long range integrated exploration program. The Work Plan and Field Test Schedule for Fiscal Year 1966 (Figure 2) calls for the conduct of field operations tests for AES and Apollo exploration mainly in Northern Arizona. The test areas include the Hopi Buttes diatreme area, Arizona; test sites adjacent to Flagstaff, Arizona; and the Moses Rock diatreme in Utah. Field work to obtain control geology and geophysics will begin this winter on an additional test site area to be selected by early fall -probably either the Pinacates area in Mexico or the Barstow area in California.
