Visit Website Get Directions Lewis and Clark Campsite 7 mi N of Crofton on NE Hwy 121 Niobrara, NE 68760 Phone: (402) 857-3565 About Campsite is visible from the "Railroad Bridge Foot Trail" over the Niobrara River and from Niobrara State Park. The site is marked with a "Fifteen Star-Fifteen Strip Flag" and a model camp of Sep 4, 1804.