The graded and paved road passes first through Cienega de Salpica el Agua, Durango, at 25.026032 -105.760208, and then Cienega de Nuestra Senora de Guadalupe, Durango at 25.065278 -106.329167, and then extends past a turn off (at 25.142227 -106.452685) of a rough, dusty ungraded side road to Topia, Durango, after which the paved and graded road continues to the crest of the Sierra Madre Occidental, and then continues down the west side of the range, passing a side road to Caneles, Durango at 25.105064 -106.554766, and continues on for 24 kilometers before coming to a dead end.