The Sinaloa cartel works in Baja California, Sinaloa, Durango, Sonora, and Chihuahua. The cartel technically smuggles colombian cocaine, mexican marijuana, and Southeast heroine in to the U.S. Its smuggled from South America to Guatemala to Mexico then into the U.S. The United States Drug Enforcement Administration put the Sinaloa Cartel as the biggest drug trafficking in Mexico.