Illinois Route 149 is a state highway located in southern Illinois. It runs approximately 20 miles, connecting the city of Carbondale to Murphysboro. The route primarily serves as a local thoroughfare, facilitating travel between these two communities. The highway is known for its scenic views, passing through a mix of urban and rural landscapes. It intersects with several other major roads, enhancing accessibility to nearby attractions, including Giant City State Park and Lake Murphysboro State Park. Overall, Illinois Route 149 plays a vital role in the region's transportation network.