Introducing our captivating postcard featuring Illinois' Tunnel Hill State Trail. This 55-mile trail connects Eldorado to Karnak Illinois, showcasing the historic charm of an old railroad tunnel. The postcard captures the unique perspective from inside the tunnel, offering a glimpse into the trail's rich history. Share the allure of this remarkable trail with friends and family, or keep it as a cherished memento of your journey through time along the Tunnel Hill State Trail.