S71-23772 (11-12 March 1971) --- Two members of the prime crew of the Apollo 15 lunar landing mission collect soil samples during a simulation of lunar surface extravehicular activity in the Taos, New Mexico area. Astronaut James B. Irwin, lunar module pilot, is using a scoop. Astronaut David R. Scoot (right), commander, is holding a sample bag. On the left is a Lunar Roving Vehicle trainer.