Kelly R. Evenson, Fang Wen, Sarah M. Lee, Katie M. Heinrich, and Amy Eyler, 2010. The purpose of this study was to describe the prevalence of indoor and outdoor physical activity facilities at schools and the changes in prevalence of the availability of those facilities to the public in 2000 and 2006. Secondarily, we sought to determine whether the availability of these facilities differed by several potential correlates. This will help determine if progress is being made toward the Healthy People developmental objective and provide some guidance for school-level interventions.