It is an amorphous blob about 1.5 metres ( 4.9 ft ) at its highest point .
Mound B is 220 metres ( 720 ft ) to the south across a large plaza area .
Mound B is an amorphous blob about 1.5 metres ( 4.9 ft ) at Mound B 's highest point .
Mound B is 220 metres ( 720 ft ) to the south across a large plaza area .