The Comancheria is the name commonly given to the historical homeland of the Comanche. The Comanche are a Native American ethnic group whose range (the Comancheria) consisted of present-day eastern New Mexico, southern Colorado The area was vaguely defined but generally was described as being north and west of a line that stretched from San Antonio, Texas in the south to the Arkansas River in present-day Oklahoma and Kansas in the north. The Arkansas River is a major Tributary of the Mississippi River. Oklahoma ( is a state located in the South Central region of the United States of America. Kansas ( is a Midwestern state in the central region of the United States of America, an area often referred to as the American "
Geographically, this line is a natural boundary between the rolling Blackland Prairie and river valleys in the east and the drier High Plains in the west. The Texas Blackland Prairies are a temperate grassland Ecoregion located in Texas that runs roughly from the Red River in North Texas The Great Plains are the broad expanse of Prairie and Steppe which lie east of the Rocky Mountains in the United States and Canada The farms and settlements in the fertile land along this line were natural targets for Comanche raiding parties who would typically raid along the many rivers and creeks that flowed from west to east across this line.
In 1837, a negotiated peace treaty between the Comanches and the new Republic of Texas failed when the Texas Congress refused to officially define the southern and eastern boundaries of the Comancheria. The Republic of Texas was a sovereign Nation in North America between the United States and Mexico that existed from 1836 to This was primarily because the frontier between Anglo and Comanche land was constantly being pushed westward as land in the east was settled and thus any such definition would be a de facto concession to the Comanche and a renunciation of any claim to the land by the Texas government.
Today, this region makes up West Texas, the Llano Estacado, the Texas Panhandle, eastern New Mexico, the Oklahoma Panhandle, the Wichita Mountains, and small portions of Colorado and Kansas. West Texas is a region in Texas that has more in common geographically with the Southwestern United States than it does with the rest of the state Llano Estacado ( Sp /ˈʎano ˌestəˈkado/ " Palisaded Plains" is a region in the southwestern United States that encompasses parts of Eastern New The Texas Panhandle is a region of the US state of Texas consisting of the northernmost 26 counties in the state New Mexico ( is a state located in the southwestern region of the United States of America. The Wichita Mountains are located in southwestern Oklahoma. The Wichita Mountains Wildlife Refuge, a favorite for hikers and rock The State of Colorado ( or chiefly by nonresidents) is a state located in the Rocky Mountain region of the United States of America.