Historic Jewel Cave Boundary Written by Marcus Heerdt January 27, 2020 While hiking on the Hell Canyon Trail (on Black Hills National Forest land), one can spot an old boundary marker that reads: “Jewel Cave National Monument Boundary, 1936.” Jewel Cave’s boundary was once larger, and formed a perfect quadrilateral which included the southern portion of the present Hell Canyon Trail, the US Highway 16 switchbacks just west of the Historic Area, and another chunk of land on the southwestern border. | Plan for the 101st Annual Gold Discovery Days Celebration July 16, 2024 National Trails Day Written by Darian Block May 31, 2024 BRIDGES OF CUSTER COUNTY March 27, 2024 Groundhog Day! Written by Andrea Spaans February 1, 2024 Plan for Vacation Day Written by National Day Calendar January 29, 2024 |