The La Junta de los Rios missions functioned as Spanish religious and agricultural outposts established beginning around 1683-1715 at the confluence of the Rio Grande and Rio Conchos, near present-day Presidio, Texas, and Ojinaga, Mexico. Unlike many Texas missions built to gather scattered nomadic groups, these missions served indigenous communities already settled there, principally the Jumano and related Patarabueye farming peoples, who had long cultivated the fertile floodplain at this river junction and who also served as traders linking Pueblo communities in New Mexico with Plains groups to the east. Franciscan friars used the missions to formalize Catholic conversion, encourage continued settled agriculture, and extend Spanish civil and religious administration over a population that had already absorbed some Spanish customs and language through earlier contact. The missions operated intermittently over decades, repeatedly losing and regaining resident clergy, and never achieved the stability of missions elsewhere in Texas; they ultimately failed to shield the region from escalating Apache raids in the eighteenth century. No mission buildings survive intact today. The historical use of these sites now is as a subject of documented archaeological interest and regional history, marked by historical markers and referenced in scholarly studies of early contact-era farming communities along the Rio Grande, with the broader La Junta area recognized as one of the longest continuously farmed locations in Texas.