sentences:  Ixtutz experienced a decrease in activity during the Terminal Classic period, after AD 825 all sites in the region ceased to erect further monuments although occupation continued.Ixtutz and other centres in the Dolores region were finally abandoned at the end of the Terminal Classic.The site was first discovered in 1852 by Colonel Modesto Mendez (then Governor of Petén) and Eusebio Lara before being lost for more than a century.