According to William A. Cassidy, describing the 1976–1977 ANSMET meteorite collecting season, "Looking across the Mackay Glacier at the great sky-blue patches of ice beyond Mount Brooke, we were looking for the first time at ice that had a tremendous upstream collecting area.
William A. Cassidy's description of the 1976–1977 ANSMET meteorite collecting season reveals: "Looking across the Mackay Glacier at the expansive sky-blue patches of ice beyond Mount Brooke, we were seeing ice for the first time that had a substantial upstream collecting area.