Originally the Park Service had a sound threshold for achieving substantial restoration of natural quiet in the Grand Canyon ... national park lands of air tours, snowmobiles, jet skis, four- wheelers, busses, cars and anything else with an engine. ... Herea#39;s is a sampling: In 1999, Grand Canyon Airlines flew 3, 085 flights at the Grand Canyon. ... GCA reports without immediate relief the company cannot possibly survive as a business and the Grand Canyona#39;s first air tour operator soon will 48.
|Title||:||Recreational access to public lands|
|Author||:||United States. Congress. House. Committee on Resources|