 Most of the settlers for this township came from Cerralvo, Cadereyta, Monterrey and surrounding townships.After establishing other towns in the interior of Mexico between Querétaro and the Gulf coast, José de Escandón arrived at Camargo on March 3, 1749.At the location called, "Paso del Azucar" on the Rio Grande, about two leagues southeast of the present site of Camargo, he met Captain Blas Maria de la Garza Falcón who already had been encamped there with forty other families and some soldiers.