In this 1984 doctoral dissertation submitted to the University of Kansas, Richard A Rogers reported a prominent mis-match between terraces along the Arkansas River system in southern Kansas and those on the Smoky Hill portion of the Kansas River system directly adjacent to the north. In the Arkansas River drainage, Terrace 1 is Holocene, Terraces 2 and 3 are Wisconsinan, and Terrace 4 is mid-Pleistocene. In contrast, on the Smoky Hill River, Terraces 1, 2, 3, and 4 are all Holocene; only Terrace 5 is Wisconsinan. All ages were assigned on the basis of numerous vertebrate fossils recovered from sub-terrace fills. The divide between these two drainage systems is narrow and is oriented almost straight west-east. Rogers proposed a tectonic cause for the differing drainage-area histories, suggesting that the Kansas River basin has been uplifting at a rate notably faster than that for the Arkansas drainage. During the authors continuing studies of land forms and terrain patterns of central and south-central Nebraska, they have noticed a pervasive and prominent northwest-southeast grain which affects all portions of the topography. Several major valleys, and innumerable minor ones, have long, straight segments oriented about N 40[degree] W. Connecting reaches approximate N 90[degree] W. This clearly is a controlled pattern. Furthermore, they have identified linear scarps, some exceeding 10 miles in length and having relief of 100 feet or more, that also strike about N 40[degree] W. These appear to be young fault scarps. On some, the northeastern side is upthrown; on others it is the southwestern side. All of these oriented valleys and scarps are in thick loess. Solid bedrock is far below the surface. These relationships strongly suggest tectonic movements, i.e. faulting, during later Pleistocene time and continuing into the Holocene.