In 1968 Moon went to Viet Nam serving in the Army for the Military Assistance Command Vietnam (MACV). There he drove his first Jeep and had to figure out himself how to put the vehicle into four wheel drive after getting it into nine inch deep jungle mud. After he completed his tour of duty he returned to Riverside, California. In 1969 Moon once again hopped in behind the wheel of a Jeep. He spent time touring the back road of California and became involved with his local club. Seeing the need to keep the trails open he began working with the California Association of Four-Wheel Drive Clubs (CA4WDC). There he worked to maintain and obtain better land user rights. The CA4WDC elected him their Conservation Chairman. In the position he worked with other off-road user groups such as hikers, rock hounds, motorcyclists and RVers to keep access. They worked together on conservation projects such as desert clean ups, rehabilitating natural springs, closing open mine shafts and protecting petroglyphs and pictographs. In 1977 the CA4WDC elected him their Vice President for a two year term, in 1980 he became their President.
Source: Author Interview with Ray Moon, June 2006.