Eastern New Mexico is a physiographic subregion within the
U.S. state of
New Mexico. The region is sometimes called the "
High Plains" or even "Little Texas". The region is largely coterminous with the portion of the
Llano Estacado in New Mexico. Eastern New Mexico mostly lies upon the
high plains, which extends to altitudes over . The region is mostly characterized by flat featureless terrain with the exception of the
Pecos River valley and the abrupt breaks along the
Mescalero Ridge and northern
caprock escarpments of the
Llano Estacado. The region typically lacks the high relief of central and northern New Mexico, such as that in the
Sangre de Cristo and
Sandia mountain ranges.