Least Adverse Environmental Effects Report

Two major natural gas projects are proposed with potential to impact Denali National Park and Preserve (DENA): the Alaska Liquefied Natural Gas (AK LNG) project and the Alaska Stand Alone Pipeline project (ASAP). Both projects propose a mostly buried gas pipeline covering more than 700 miles from the North Slope of Alaska to southcentral Alaska. The environmental impact statement (EIS) alternatives for these projects include an alignment that passes through DENA frontcountry for approximately 7 miles, as allowed for by the 2013 Denali National Park Improvement Act. If the procedural requirements of Title XI of the Alaska National Interest Lands Conservation Act are removed, as considered in recent legislative proposals, both projects are likely to change their proposed alignments to the route that passes through the Denali frontcountry.

The Denali National Park Improvement Act authorizes the Secretary of the Interior to issue a right of way permit for: "...a high-pressure natural gas transmission pipeline...in nonwilderness areas within the boundary of Denali National Park within, along, or near the approximately 7-mile segment of the George Parks Highway...if, following an appropriate analysis prepared in compliance with the National Environmental Policy Act...the route of the right-of-way is the route through the Park with the least adverse environmental effects for the Park..."

In consideration of the direction of the Denali National Park Improvement Act, the purpose of this report is to identify a route with the least adverse environmental effects within the boundaries of DENA.
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