puits (1) sels (1) projet (1) association (1) pays (1) exportation (1) document (1) marais (1) biens (1) Guatemala (1) Civilization (1) Uplands (1) Antiquities, Prehistoric (1) Will (1) Societies (1) Social groups (1) Salt (1) Rivers (1) Obsidian (1) Mountains (1) Material culture (1) Prehistoric peoples (1) Land use (1) Jade (1) Investigations (1) Exchange (1) Example (1) Concepts (1) Commercial products (1) Civilization (1)