Bertha, MN

ZIP code 56437 belongs to the city of Crosby in Crow Wing County, Minnesota. This area is known for its beautiful natural surroundings, including the Cuyuna Country State Recreation Area, a popular destination for outdoor enthusiasts, offering opportunities for hiking, mountain biking, and water activities. Other landmarks in the area include Serpent Lake, which provides fishing and boating opportunities, and the Croft Mine Historical Park, showcasing the region's mining history.