Flight Activity

• Trends in Grand Canyon Commercial Air Tour Activity, Presentation to the GCWG by Norm Elrod and Paul Joly, FAA (PDF)
• NPS Administrative Flights - Presentation at Grand Canyon Working Group Meeting May 2006 (PDF)
• More

Grand Canyon Working Group - Membership

• List of Grand Canyon Working Group Participants (PDF)
• FR Notice - Membership in the Grand Canyon Working Group of the National Parks Overflight Advisory Group (PDF)
• More

Legal

• 2002 Court Decision- USATA, et al., Petitioners v. FAA, et al., Respondents; Grand Canyon Trust, et al., Intervenors (Aug, 2002) (PDF)
• Review of Statutes and Court Decisions, Presentation to the GCWG by Carla Mattix, DOI (PDF)
• More

Maps

• Grand Canyon National Park Special Flight Rules Area Poster (PDF)
• Map of Dual Noise Standard Zones (PDF)
• More

Meeting Agendas and Summaries

• Grand Canyon Working Group - Presentations from 12th Meeting
• Grand Canyon Working Group, 11th Meeting Summary, Scottsdale (PDF)
• GCWG 10th Meeting Summary - Scottsdale (PDF)
• More

NEPA

• Progress Report #2 (PDF)
• Environmental Impact Statement Schedule, Revised Jan. 2008 (PDF)
• More

Noise Modeling/Analysis

• Grand Canyon WG - Noise Analysis Presentation Sept 07 (PDF)
• More

Other Agency Documents

• AC-93-2 Noise Levels for Aircraft Used for Commercial Ops in GCNP SFRA, Appendix 1 & 2 updated 12/22/2008 (PDF)
• Grand Canyon National Park - Aircraft Noise Impact Analysis, GRCA Presentation to GCWG (PDF)
• More

Other Studies

• Comments on "Study of Visitor Response to Air Tour and Other Aircraft Noise in National Parks" (PDF)
• Study of Visitor Response to Air Tour and Other Aircraft Noise in National Parks (PDF)
• More

Process

• Grand Canyon Working Group Media Policy (PDF)
• Grand Canyon Working Group Protocols: , PDF
• More

Proposals for Consideration by GCWG

• Presentation by Elling Halvorson, Member of the GCWG (PDF)
• Discussion Proposal: Ways to Substantially Restore Natural Quiet to Grand Canyon National Park, by Jim McCarthy, Sierra Club (PDF)
• More

Terms and Related Documents

• Public Notice Clarifying the Definition of Substantial Restoration of Natural Quiet at Grand Canyon National Park; NPS Federal Register notice of disposition of comments and adoption of clarification (PDF)
• Public Notice Clarifying the Definition of Substantial Restoration of Natural Quiet at Grand Canyon National Park; NPS Federal Register notice (PDF)
• More

Tribal

• The Special Relationship Between the Federal Government and Indian Tribes - Presentation at Grand Canyon Working Group Meeting October 2005 (PDF)
• Presidential Memorandum; Government-to-Government Relationship with Tribal Governments (PDF)
• More