Philmont Scout Ranch and describing stratigraphic sections, strike and dip measurements, recording of field notes...and geophysical traverses that included taking measurements with magnetometers, gravimeters and seismometers in an attempt to determine subsurface structure." Astronauts who would use this training on the Moon included Apollo 11's Neil Armstrong and Buzz Aldrin, Apollo 12's Pete Conrad and Alan Bean, Apollo 15's David Scott, and Apollo 17's Gene Cernan. Notable geologist instructors included G.D. Robinson. Philmont Scout Ranch Philmont Scout Ranch is a ranch located near the town of Cimarron, New Mexico; it covers 140,177 acres (219 sq mi; 567 km²) of wilderness in the Sangre
Buzz Aldrin (CMP) and Aldrin as Lunar Module Pilot (LMP). Their assignment as the backup crew of Apollo 9 was officially announced on November 20, 1967. Due to design and manufacturing delays in the lunar module (LM), Apollo 8 and Apollo 9 swapped prime and backup crews, and Armstrong's crew became the backup for Apollo 8. Under the normal crew rotation scheme, Armstrong was then expected to command Apollo 11. Michael Collins, the CMP on the Apollo 8 prime crew, experienced trouble with his legs that doctors diagnosed as a requiring surgery. Lovell took his place on the Apollo 8 crew. When