86 Austin Drive is a fully functional duplex on 20 acres just outside Three Forks, bordering state land with open farmland and mountain views in every direction. Each unit is 1,512 square feet across two levels, totaling 3,024 square feet. The upper unit has four bedrooms, two full baths, a kitchen, dining area, and living room with hardwood flooring throughout. A covered porch off the main level frames the views. A wood stove anchors the living space. The lower unit is a fully self-contained walkout with its own kitchen, two bedrooms, a full bath, family room, and dedicated laundry with a separate entrance. Both units are move-in ready and independently functional. Outside you have an equipment barn, shed, and partial fencing. Metal roof. Concrete wall foundation. Well water, septic, and propane heat. Per Gallatin County, the property carries no zoning restrictions or land use limitations, with potential for a lot split - a meaningful detail at 20 acres. Live in one unit, rent the other. Straight investment. Multi-generational. The layout handles all of it. Twenty acres. State land on your fence line. No zoning. Lot split potential. $2,057 in annual taxes. No HOA.