Emerald ash borer, Agrilus planipennis (Coleoptera: Buprestidae), was first identified in southeast Michigan in 2002 where it has killed millions of ash trees. In the summer of 2004, trap trees were established at over 100 sites throughout Michigan in an effort to detect additional populations of this exotic species. Field sites were all located in proximity to campgrounds on state and federal land. Visitor records were used to determine which state campgrounds were most visited by campers from the known range of the emerald ash borer. Trap trees were girdled by removing the bark from a portion of the stem. Sticky traps were placed on trees, and monitored every two weeks during the flight period of the beetle. This study combines the most effective known method for detecting this insect with the locations where emerald ash borer is most likely to have been introduced through the movement of firewood.