You know Mexican drug cartels are responsible for terrible violence south of the U.S. border, but the groups have plenty of people in the U.S., too. A new map of cartels' influence in the U.S. shows that they even run large grow-ops in the west, as far north as Oregon and Washington.

The map, from the National Post, uses data from the National Drug Intelligence Center (which closed in 2012), the National Seizure System and the Justice in Mexico Project. Cartels appear in nearly all states, where they often work with the gangs that sell drugs to final consumers. Cartel presence is most common in cities along the U.S.-Mexico border and on the East Coast between Boston and Washington, D.C.

Deaths Associated With Drug Cartels:  From the National Post

Demand for drugs in the U.S. is rising and Mexican cartels are ready to supply them, the National Post reported. That supply comes at a price back home. Below the map, graphics show the numbers of deaths in Mexico associated with the cartels. Visit the National Post to see the entire map.