Thank you for signing, commenting and keeping the quest for peace and quiet in Glacier a priority for present and future generations. Glacier already has a General Management Plan in place to produce an ATMP that honors its revered International Peace Park and defacto Wilderness status, placing a high value on natural sounds and visitor enjoyment.  There is more work ahead - and Quiet! Glacier will be there to help.  Thank you for your support and sharing the information with others! https://www.nationalparkstraveler.org/2020/08/nps-faa-develop-framework-air-tour-management-plans