<P> Spain had been concerned for many years with what it viewed as the encroachment of the French from Louisiana into Texas . About 1734 , the French moved their post at Natchitoches from the east to the west side of the Red River . The Spanish governor of Texas , Manuel de Sandoval , was reprimanded for not protesting this violation of what Spain believed was its sovereign territory . In 1740 , Governor Prudencio de Orobio y Basterra was ordered to investigate French intrusion in the Natchitoches area . Other investigations were ordered in 1744 and 1751 . </P>
<P> Spain had been concerned for many years with what it viewed as the encroachment of the French from Louisiana into Texas . About 1734 , the French moved their post at Natchitoches from the east to the west side of the Red River . The Spanish governor of Texas , Manuel de Sandoval , was reprimanded for not protesting this violation of what Spain believed was its sovereign territory . In 1740 , Governor Prudencio de Orobio y Basterra was ordered to investigate French intrusion in the Natchitoches area . Other investigations were ordered in 1744 and 1751 . </P>
which river creates a natural boundary for the louisiana purchase of 1803
which river creates a natural boundary for the louisiana purchase of 1803
Red River
Red River