Complex sentence: Xultún is a large Maya archaeological site which once supported a fairly large population, the site is located 40 km northeast of Tikal and 8 km south of the smaller Preclassic site of San Bartolo in northern Guatemala.
Split into simpler sentences: Xultún is a large Maya archaeological site which once supported a fairly large population. The site is located 40 km northeast of Tikal and 8 km south of the smaller Preclassic site of San Bartolo in northern Guatemala.