Starting point of the routes

(...) the presence of a section of Qhapaq Ñan (the Inka road) between the Casma Valley and the coastline, possibly constructed during the time of Chankillo, which would give this road a temporal extension of more than 1600 years. (Executive summary, p. 13)

The Peabiru Trail passes through the reserve. It was not an integral part of the Qhapaq Nan but was used by the Inca.