By studying the Rocky Mountains in Colorado, Idaho, and Wyoming, Leopold helped recreate the paleoenvironment of the Paleogene and Neogene periods.
Leopold II of Belgium | Leopold Stokowski | Léopold Sédar Senghor | Leopold II | Leopold I, Holy Roman Emperor | Leopold I of Belgium | Leopold Auer | Leopold III of Belgium | Order of Leopold | Leopold Mozart | Leopold II, Holy Roman Emperor | Leopold I | Leopold Bloom | Leopold von Ranke | Leopold III, Duke of Austria | Leopold | Aldo Leopold | Order of Leopold (Belgium) | Leopold Zunz | Estella-Lizarra | Leopold Wenzel | Leopold, Victoria | Leopold Kronecker | Leopold Hager | Jason Leopold | Archduke Leopold Wilhelm of Austria | Order of Leopold (Austria) | Leopold von Sacher-Masoch | Leopold Moczygemba | Leopold IV, Prince of Lippe |