Emerald Necklace park system extended from the Boston Common to Franklin Park. Designed somewhere in the range of 1878 and 1895 by Frederick Law Olmsted, Sr., with Charles Eliot, John Charles Olmsted and Frederick Law Olmsted, Jr., it is perhaps the first metropolitan scenic route on the planet. The center of the 1,100-section of land system includes five parks: Jamaica Pond, the Muddy River Improvement (later named Olmsted Park and the Riverway), the Back Bay Fens, the Arnold Arboretum and West Roxbury Park (presently Franklin Park). The parks were connected by parkways resulting in a comprehensive system of water, meadows and forest measuring five miles long. The Olmsted firm including collaborations between Arthur Shurcliff on the Back Bay Fens and the Olmsted Brothers consulted on the parks until the 1920s. From 1984 to 1991, a joint endeavor between Walmsley + Company and Pressley Associates (Walmsley/Pressley Joint Venture) created "The Emerald Parks Master Plan for Back Bay Fens, Jamaica Pond, The Riverway, and Olmsted Park." This Park was named Justine Liff who was previous Parks Commissioner. In 1996 the Emerald Necklace Conservancy was made to secure, restore, keep up and advance the park system.