Murchison Falls became one of Uganda’s first national parks in 1952 At Murchison Falls, the Nile squeezes through an 8m wide gorge and plunges with a thunderous roar into the "Devil's Cauldron", creating a trademark rainbow The northern section of the park contains savanna and Borassus palms, acacia trees and riverine woodland. The south is dominated by woodland and forest patches. The 1951 film "The African Queen" starring Humphrey Bogart was filmed on Lake Albert and the Nile. Murchison Falls National Park lies at the northern end of the Albertine Rift Valley, where the sweeping Bunyoro escarpment tumbles into vast, palm-dotted savanna. First gazetted as a game reserve in 1926, it is Uganda's largest and oldest conservation area, hosting 76 species of mammals and 451 birds.