Natural Bridge Park located in Natural Bridge, Alabama and the heart of Winston County, has been open since 1954. The parks main attraction is the Natural Bridge rock formation. At 60 feet high and 148 feet long, it is the longest natural bridge east of the Rocky Mountains in North America. The rock is comprised primarily of sandstone and iron ore, giving it its unique colors. The park also includes picnic accommodations, an artesian well with drinking fountains, a gift shop featuring hand-crafted items, 27 varieties of fern, a variety of hemlock which dates back to the Ice Age. A roughly mile long nature trail takes visitors from the store to the bridge the loops through the valley past a variety of rock formations, waterfalls, and large hemlock trees. Adjacent to the bridge is a 15 foot high rock outcropping, presenting the image of a large Native American head similar to that on the American Indian Head nickel.