New World archaeologists have long agreed that there was prehistoric cultural interaction between the southeastern United States and Mesoamerica, but seldom are the details of such potential relationships discussed, especially recently. The farthest westward extent of Southeastern cultural influences, as shown through the distributions of fiber-tempered pottery, Archaic and Woodland mounds, later platform mounds, ceramic styles, and other material culture, seems to be east Texas. Only a few Mexican artifacts have been found at the edges of the Southeast-obsidian at Spiro and coastal Texas, asphalt-covered pottery extending northward from Mexico into southern Texas-though general ideological connections, not to mention the sharing of maize agriculture, seem obvious. In northeast Mexico, outside the Mesoamerican heartland, Huastecan people made artifacts similar to types in the Southeast. But long-distance interactions overland or via the Gulf of Mexico were apparently sporadic, despite some common cultural foundations. Strong Southeastern cultural identities plus the presence of the north Mexico/south Texas desert may have discouraged movement into the Southeast of many important Mesoamerican traditions, such as cotton growing and beer drinking.