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Gillespie Field covers an area of 60 acres (24 ha) at an elevation of 200 feet (61 m) above mean sea level. It has one runway designated 16/34 with a turf surface measuring 1,635 by 50 feet (498 x 15 m). For the 12-month period ending August 19, 2010, the airport had 700 general aviation aircraft operations, an average of 58 per month.