the country's landscape at that time. In this detailed itinerary, Sourryère de Souillac notes various landmarks, rivers, and geographical challenges encountered during his journey. He meticulously records measurements of latitude and observations of natural features, offering insights into the terrain he traverses. The itinerary is presented in a systematic manner, beginning with the latitude of Buenos Aires and progressing through descriptions of rivers, posts, and towns, culminating in his arrival in Córdoba. The work emphasizes the practicalities of travel in 18th-century Argentina while also shedding light on the natural resources, fauna, and flora of the landscapes he describes, making it a significant contribution to early Argentine geography. (This is an automatically generated summary.)