This rare Spring River property near Mammoth Spring offers nearly 700 feet of river frontage, ownership of roughly three-quarters of a private island, and direct access to world-class trout fishing and floating. Tucked beneath towering white oaks with gated entry and paved access, the property feels secluded while remaining just minutes from town, Mammoth Spring State Park, and the fish hatchery. The fully furnished 1,500 sq. ft. lodge features vaulted ceilings, custom woodwork, granite countertops, stainless appliances, spacious living areas, and a large covered deck overlooking the river. A covered outdoor entertainment pavilion includes grills, TVs, custom seating, and full bath facilities, perfect for hosting guests or corporate retreats. Additional improvements include a blacktopped drive, custom firepit area, and four furnished guest cabins with private porches and mini-splits. Turn-key and income-producing ready, this one-of-a-kind Ozark retreat offers privacy, recreation, and investment potential in an unmatched riverfront setting.