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Soundscapes

This toolbox provides information pertaining to the management of soundscapes in wilderness. It includes law and agency policies, management guidelines and tools, examples of plans, and other resources you may find useful.

Introduction

"How often we speak of the great silences of the wilderness and of the importance of preserving them and the wonder and peace to be found there. When I think of them, I see the lakes and rivers of the North, the muskegs and expanses of tundra, the barren lands beyond all roads. I see the mountain ranges of the West and the high, rolling ridges of the Appalachians. I picture the deserts of the Southwest and their brilliant panoramas of color, the impenetrable swamplands of the South. They will always be there and their beauty may not change, but should their silences be broken, they will never be the same."-Sigurd F. Olsen

The preservation of the natural soundscapes and rhythms that accompany these resources in the environment is critical to the preservation of wilderness character.

Law and Policy

The Wilderness Act

The Wilderness Act contains both implied and stated terminology that supports protecting the soundscapes in wilderness areas:

  • Outstanding opportunity for solitude (Sec. 2(c))
  • Primeval character (Sec. 2(c))
  • Managed so as to preserve its natural conditions (Sec. 2(c))
  • Affected primarily by the forces of nature (Sec. 2 (c))
  • Primitive and unconfined recreation (Sec. 2(c))
  • No use of motor vehicles, motorized equipment or motorized boats (Sec. 4(c))
  • No landing aircraft (Sec. 4(c))

All of these references suggest possibilities for natural soundscapes, and therefore an environment that is not impacted by noise pollution to the greatest extent possible.

The Wilderness Act also allows for activities which may generate sound that is not natural. By law, mining, commercial grazing, water developments, motorboats or aircraft, and actions on private and state land inholdings, may be allowed and activities associated with these uses may generate noise audible inside wilderness. Managers are encouraged to minimize these unnatural sounds when and where possible.

Section 4(f) provision of the Department of Transportation Act of 1966 (codified at 49 U.S.C. 303)

Requires that feasible alternatives or all possible planning to minimize harm be used in connection with DOT proposed projects (including FAA overflights and commercial air tour authority);

The National Environmental Policy Act (NEPA) (codified at 42 U.S.C. 4371 et. seq.)

Requires that all federal agencies analyze the potential environmental impacts from proposed projects and programs before making decisions.

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

Agency Policy

MS-7300.06 D. Noise

When BLM programs, projects, and/or use authorizations have the potential to affect existing resources that may be sensitive to noise such as public health and safety, wildlife, heritage resources, wilderness, wildland/urban interface areas, and other special value areas (such as Areas of Critical Environmental Concern and National Landscape Conservation Areas), BLM will consider noise and its potential impacts on the public and the environment, as well as any appropriate mitigation measures, during the planning and authorization review process. This is especially important when land use proposals include high volumes of motorized vehicles or mechanized equipment.

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

Guidelines and Strategies

Resources