Wisconsin Highway 21 is a state highway located in central Wisconsin. It runs approximately 90 miles from Wisconsin Dells in the east to New Lisbon in the west, connecting several communities along the way. The highway serves as an important route for both local traffic and travelers exploring the region. The road passes through diverse landscapes, including forests, lakes, and farmland. It intersects with other major highways, providing access to various attractions, such as Castle Rock Lake and Necedah National Wildlife Refuge. Wisconsin Highway 21 is a vital transportation link for residents and visitors alike.