 Conservationists are now demanding protection for parts of the Steigerwald by nominating it for a World Heritage Site.There are several nature parks in Franconia, including the Altmühl Valley Nature Park, which, since 1969, has been one of the largest in Germany.Other nature parks are the Swabian-Franconian Forest Nature Park in Baden-Württemberg, and the nature parks of Bavarian Rhön, Fichtel Mountains, Franconian Heights, Franconian Forest, Franconian Switzerland-Veldenstein Forest, Haßberge, Spessart and Steigerwald in Bavaria, as well as the Bergstraße-Odenwald Nature Park which straddles Bavaria, Baden-Württemberg and Hesse.