Mixco and Villa Nueva are practically part of Guatemala City. The second biggest city would be Quetzaltenango, and the third would be Escuintla (probably). The largest mountain range is spelled Cuchumatanes, no Chuchumatanes. Please fix.
The river between Mexico and Guatemala could be either Usumacinta or Suchiate. Both answers are right.
The river between Mexico and Guatemala could be either Usumacinta or Suchiate. Both answers are right.