The Tenafly Nature Center is a non-profit member-supported nature preserve. Its mission is to protect almost 400 acres (1.6 km²) of woodland, all of its inhabitants and teach the next generations to do the same. It is located at 313 Hudson Avenue, Tenafly, New Jersey, in Bergen County. It sits on top of the Palisades, a rock formation in northeastern New Jersey overlooking the Hudson River. Within this natural tract are more than six miles (10 km) of trails, several streams, and Pfister's Pond. There is also a visitors’ center with live animals, nature exhibits and a library for members. A Backyard Habitat showcases wildlife-attracting flowering plants. The forest is predominantly oak, with some other deciduous and evergreen trees as well. In the spring, native wildflowers can be seen, such as trout lily; mayapple; spring beauty; and common blue violet, New Jersey’s state flower.