Arches National Park Expansion Act of 1998

[AI summary unavailable — showing source text] Arches National Park Expansion Act of 1998 - Modifies the boundary of the Arches National Park, Utah, to include the area known as the Lost Spring Canyon Addition. Requires the Secretary of the Interior to transfer jurisdiction over the Federal lands contained in the area from the Bureau of Land Management to the National Park Service. Specifies restrictions on the continuation and sale of existing grazing leases, permits, or licenses for the area. Withdraws Federal lands within the area from the public land laws, including the mineral leasing laws. Provides that the inclusion of the area in the Park shall not affect the operation or maintenance of the natural gas pipeline and related facilities located in the area by the Northwest Pipeline Corporation or its successors. Directs the Secretary to transfer specified Federal lands to the State of Utah in exchange for specified State school trust lands in the area, if the State offers such exchange within one year after enactment of this Act. Subjects such exchanged lands to valid existing rights. Specifies requirements to be satisfied by the State before undertaking or permitting any surface disturbing activities on the acquired lands…