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Training for the Apollo astronauts to be able to identify the composition of soils and rocks they would find on the Moon began early in the lunar program. Training the astronauts was initiated by the U.S. Geologic Survey (U.S.G.S.) and conducted by other government agencies as well. Among the first vehicles built to support this training was the Mobile Geologic Laboratory (pictured above), which became best known for its acronym, MOLAB. It was built by General Motors and delivered to the U.S.G.S. in 1965. It was conceived to evaluate the feasibility of specific equipment and instruments designed for use on the lunar surface.