http://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=1DlA9S4OHC3ltzdYxK4ed0Dx7RmxyT3hAOQaRr7J4-fb7zRL0_0CtZ7hbROCG&hl=en - 2009 - Pittman Valley Helibase Plan
http://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=10hYPChiBp5EessZfjZ6SmLEPnZB7e4Ql4CaldHsZ4EWNZxy7JYHQ4eaGtzoJ&hl=en - 2009 Pilot Orientation - Kaibab Natl Forest - has freqs