South America is a continent in the Western Hemisphere, and the Southern Hemisphere. It lies directly south of North America. There are several gold bearing regions, including the Andean mountains and the jungles of Guyana.
Gold Rush: The Jungle was filmed in Guyana, as a pair of episodes in the post-season-2/pre-season-3 summer season.
Gold Rush: South America post-season-3/pre-season-4 specials is to be aired as a summer series set in three countries (Peru, Chile, Guyana) in South America where the Hoffmans will prospect for viable claims, as they did in the post-season-2/pre-season-3 "The Jungle" pair of episodes.
Season 4 will involve the Andes, 7000 miles south of Alaska and the Klondike.