Visit Website Get Directions Niobrara Wilderness Outfitters LLC Visit Website Get Directions 41529 River Rd Sparks, NE 69220 Phone: (402) 376-3403 About Hunt deer, turkey or buffalo on more than 22,000 acres in the Niobrara River Valley and Sandhills. Guided or self-guided drop camps for rifle, muzzleloader and archery.