RVParkStore.com has 1 RVs for Sale in Salt Lake County, MT. Find the perfect RV, camper, or motorhome in Salt Lake County, MT. The current average listing price is around $49,500. RV prices in Salt Lake County, MT have remained unchanged at approximately 0% compared to the 12-month average price of $49,500. Listing prices currently range from about $49,500 to $49,500 depending on the size, age, and mileage of the vehicle.