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Timing of Quaternary deformation in the range front of the Urumqi River is still unclear.Here we chronologically constrain deformation in this region by analyzing the deformed Pliocene and lower Pleistocene strata as well as terraces of the Urumqi River.The observed stratigraphic geometry of the Saerqiaoke anticline in the field characterizes the growth process of this fold.The systematic change in the dips of the strata of the Saerqiaoke anticline is in coincidence with the characteristics of growth strata, syntectonic sedimentation causally associated with fold growth (Burbank et al., 1996).