Mammoth Cave National Park

Mammoth Cave National Park has begun planning efforts to replace deteriorated cave trail materials with new sustainable materials along the Frozen Niagara Tour Route between the New Entrance and Frozen Niagara Entrance. The project will provide safer walking surfaces for park visitors, staff and volunteers; reduce or eliminate the impact of lint and dust on delicate cave resources; and protect cave resources by keeping visitors on defined trails and away from sensitive cave resources.

The existing trail surface along the route is composed of a variety of materials including concrete, aggregate, dirt, fiberglass reinforced plastic and recycled lumber. The National Park Service (NPS) plans to reconstruct the trail surfaces using concrete as paving, concrete pavers, or other sustainable materials to provide a more consistent trail surface. The project also includes removal of dust and surface dirt from existing trail surfaces, installation or replacement of steps and elevated walkways and the installation of handrails and guardrails. Other project elements will harden the trail surface and install new benches at two gathering areas and add electrical and communication conduits under the trail surface to facilitate existing and future cables.

The NPS will conduct an inventory of potential historic and archeological resources located along the trail route. These resources will be evaluated for their eligibility for listing in the National Register of Historic Places, and potential impacts of the project on the resources will be analyzed.

The park invites public comments and ideas regarding potential issues and concerns that should be considered during the planning process. Comments may be provided by mail or online, via the addresses below. Comments are requested by May 26, 2021.

Comments online are preferred and may be submitted through the NPS Planning, Environment, and Public Comment (PEPC) website at: http://parkplanning.nps.gov/maca.

Comments by mail may be sent to:

Superintendent

Re: Rehabilitate Cave Trails

P.O. Box 7

Mammoth Cave, KY 42259-0007 ;

All comments submitted will be considered during the planning process. It is advised that comments, addresses, phone numbers, email addresses or other personal identifying information may be made publicly available at any time. A request to withhold personal identifying information from public review can be made, but it is not guaranteed.

Additional opportunities to submit public input will be available as the project advances. Please check the NPS PEPC website at: http://parkplanning.nps.gov/maca for future updates.

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