#4 . There are several tributaries in South Texas with San Antonio as a center. With the settlement.of San Antonio a new trail developed from Mexico City through San Antonio to Nacogdoches and then into French territory at Natchitoches and on to New Orleans and \ • ' . Mobile—the Old San Antonio Hoad (El Caraino Real; the King’s Highway) now marked every 5 ras. by the D. A. R. When LaSalle lahded on Texas soil and the French later occupied Louisiana, the Spanish worked up from Mexico to protect Texas territory, and if possible to prosecute her claims to the Mississippi Valley country. San Antonio and Now Orleans started the same year (1718), each becoming the military scat of empire. San. Antonio became the neat of Franciscan missions of the diocese of San Antonio. New Orleans bocame the Louisiana seat of the Jesuit diocese of Quebec. Nacogdoches ’./as the Spanish military and mission frontier and Natchitoches was the French frontier west. Missions wore also planted at I Uvalde sand near th.e old silver mine at Menard. VII. EL PASO DIVISION — 670 Miles, Main Lines. Van Horn westward through and including New Mexico (60S me.) and the Rio Grands Valley northward in New Mexico to Santa Fe (603 ms.). Also to include tributaries. The oldest and most romantic works in the Spanish Southwest* Santa Fe is the second oldest city in the United States. The prehistoric Indian works and the old Spanish adventure and effort are an interwoven romance. This la all naturally a part of the Old Spanish Trail system.