The Trans-Pecos, as originally defined in 1887 by the Texas geologist Robert T. Hill, is the distinct portion of Texas that lies west of the Pecos River...

of the Pecos River is often called "Far West Texas" or the "Trans-Pecos", a term introduced in 1887 by geologist Robert T. Hill. The Trans-Pecos lies within...

organized in 1875. It is named for the Pecos River. It is one of the nine counties that comprise the Trans-Pecos region of West Texas. Archeological digs...

The Trans-Pecos rat snake or Davis Mountain rat snake (Bogertophis subocularis), is a species of medium to large, nonvenomous rat snake in the family...

in the valley on the west bank of the Pecos River at the eastern edge of the Chihuahuan Desert, in the Trans-Pecos region of West Texas and just south of...

Trans-Pecos copperhead, western copperhead Agkistrodon contortrix pictigaster was formerly a venomous pit viper subspecies found in the Trans-Pecos region...

The Trans-Pecos Volcanic Field is a volcanic field located in western Texas in the counties of Brewster, Jeff Davis, Presidio, and extends into northern...

several regions with distinctly different climates: Northern Plains, Trans-Pecos Region, Texas Hill Country, Piney Woods, and South Texas. Generally speaking...

one of the nine counties that comprise the Trans-Pecos region of West Texas. Reeves County comprises the Pecos micropolitan statistical area. Prehistoric...

Texas, west of the Pecos River, beginning with the Davis Mountains on the east and the Rio Grande to its west and south. The Trans-Pecos region is the only...