Preserving the ability to hear natural sounds like this—not the engines of cars and buses, the generators of concession stands, or the thwap-thwap-thwap of sightseeing helicopters taking off and landing—is part of the reason for officially designated wilderness areas. At Glacier, a new GIS-based “story map” is giving park managers a sophisticated tool for understanding the wilderness character in various parts of the park, while offering park visitors another way to know the park’s wildest areas, too.