The general physiography of the terrain is hilly. Trenches are centerpieces of the distinctive physiography of a convergent plate margin. By 1901, there were clear differences in the definition of the term physiography. The history of "physiography" itself is at best a complicated effort. In these works Fenneman described 25 provinces and 85 sections of the United States physiography. The physiography of Vadodara features a number of rivers. Additional contributing factors include physiography, tectonics, and oceanography. The physiography of the district shows six distinct hill ranges. The district has considerable diversity in its soils, physiography, land use patterns and cropping systems. Elsewhere, Thomas Henry Huxley's "Physiography" was published in 1877 in Britain. Even in the 21st century, some confusion remains as to exactly what "physiography" is. The physiography is characterised by hill ranges, valleys and plains. Physiography is distinct from the Arkansas Valley. During the early 1900s, the study of regional-scale geomorphology was termed "physiography". Physical geography (or physiography) focuses on geography as an Earth science.