It is a sunken ballcourt with a north - south orientation and is entirely enclosed .
Ballcourt A11 encloses the west side of the Group A plaza , separating it from the retaining wall dropping off to the ravine behind the ballcourt .
Group A is a sunken Group A with a north - south orientation and is entirely enclosed .
Ballcourt A11 encloses the west side of the Group A plaza , separating it from the retaining wall dropping off to the ravine behind the ballcourt .