This bill amends the National Trails System Act to add the Bonneville Shoreline Trail to the list of routes eligible for a feasibility study for potential designation as a national trail. The trail is an approximately 280-mile network of existing and proposed pathways running from the Idaho-Utah border south to Nephi, Utah, tracing the ancient shoreline formed by prehistoric Lake Bonneville. While the bill as introduced would have directed the Secretary of the Interior to conduct this study, a Senate committee amendment shifted that responsibility to the Secretary of Agriculture instead, since much of the trail corridor falls within areas managed by the U.S. Forest Service. This measure primarily affects residents, hikers, and outdoor recreation users in Utah and Idaho, as well as land management agencies overseeing the affected areas. The bill does not designate the trail outright or provide direct construction funding; it simply mandates a formal study to assess whether the trail meets the criteria for official national trail status, though it does not specify a strict deadline for completing that review.