INTRODUCTION
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ISSUES AND IMPACT TOPICS
Derivation of Impact Topics
Specific impact topics were selected to focus discussion and to allow comparison
of the environmental consequences of each alternative. These impact topics were
identified based on
federal laws, regulations, and executive orders; 2001 NPS Management Policies;
National Park Service knowledge of special or vulnerable resources, and scoping.
A brief rationale for the selection of each impact topic is given below, as is
the rationale for dismissing specific topics from further consideration.
