In 2008 and 2009 the National Park Service (NPS) conducted its second Comprehensive Survey of the American Public (CSAP2), a nationwide telephone survey consisting of 15-minute interviews with more than 4,000 respondents across the United States. Several questions contained in the first NPS comprehensive survey conducted in 2000 (CSAP1) were replicated in this second iteration. Both surveys obtained information on public attitudes and behaviors related to programs and services provided by the NPS, as well as on demographic characteristics of recent visitors and non-visitors to the National Park System. CSAP2 was designed, administered, and analyzed on behalf of the NPS by the Wyoming Survey & Analysis Center (WYSAC) at the University of Wyoming.