For centuries Mexican people of the plains—or los Llaneros—have inhabited and embodied the borderland region known today as the Southern Great Plains. Yet their central presence in the area is often forgotten. This diverse collection of essays brings much-needed attention to the ethnic culture and history of the Llano, the vast grassland plains encompassing the Texas Panhandle, eastern New Mexico, and corners of Colorado, Kansas, and Oklahoma. Los Llaneros covers a broad period, beginning with the Coronado entrada of 1540 and ending in the big ranch era around 1900. It is a unique colonial history, involving Nuevomexicanos, Comanches and other Indigenous peoples, the Spanish, and Anglo-Texans. The volume is interdisciplinary in its approach, embracing archeological, folkloric, literary, and cultural knowledge. Through these multiple perspectives, Los Llaneros achieves a singular goal: counteracting a long silence—and at times silencing—of Mexican people. Collectively the contributors to this volume make a compelling argument that this region's ethnic history must be recovered and reinterpreted to understand fully the cultural, environmental, and racial dynamics of the Southern Plains. A timely reconsideration of an important borderland region, Los Llaneros opens new pathways for future examination of the Llano and its diverse peoples.