In March 2024, Austin Edwards ascended from Dart River to the 700m contour, with no evidence of canyon found. Perhaps there could be canyon above here, but the nearby Abruzzi had its good canyon section between 600 and 700m, so that is the most obvious rock band to be searching for the nearby drainages.

In March 2024, Austin Edwards ascended from Dart River to 700m contour: no evidence of a canyon was found. There could be something above that elevation, but the nearby Abruzzi canyon was gorged between 600-700m.