So far, the researchers have revealed about 40 percent of the mosaic. The floor is in "pristine" condition, [Michael Hoff, a University of Nebraska, Lincoln art historian and director of the mosaic excavation] said in a university video about the dig. It would have fronted an open-air marble swimming pool flanked by porticos.
The mosaic itself is composed of large squares, each sporting a unique geometric design on a white background, from starburst patterns to intertwined loops. It's the largest Roman mosaic ever found in southern Turkey, which was thought to be rather peripheral to the Roman Empire, according to Hoff. The existence of the mosaic suggests that Antiochia ad Cragum was far more influenced by the Romans than believed, Hoff said.
Full report here. The video gives the scale of the dig.