http://www.snr.arizona.edu/taxonomy/term/489 The taxonomy view with a depth of 0. en http://www.snr.arizona.edu/project/recreation <p>Dr. Randy Gimblett uses agent-based models to understand and predict visitor impact. recreation management national parks public land visitor impact International Wed, 11 Feb 2009 11:52:21 -0700 alyssa 839 at http://www.snr.arizona.edu