previously made stone monuments and then reworked them or recycled them into another shape withnother iconogrhy. we found the tenth and newest colossal head at san lorenzo last year. it wasound in the ravine, a ravine called e ca de la hoche, where three other coloal headhave been found. across the top of the headdress, a three-digited hand or claw descends. this insignia probably has something to do with the name of the person represented. each colossal head is a portrait of a ruler from olmec times. eache is very different from all the other faces and the expressions are different. thisne has a very benign expressio the loal hd anorted to the comnityusm tenochtitla so now, with the help of the town, we're buildingetter home for all the sculpture we have housed there. obregon: these portraits are carved of stone in a region where stone is not naturally available. enormous blocks of basalt weighing many tons apiece were carried witut beasts of burden some 60 miles from distant mountains. the magnitude of this task is clear evidence of the ruler's power and authority over a large and efficient l