It was one of the greatest thrills of my life to stand there, waist high in crusty snow, on a peak never before trod by human kind, surrounded by the great ghostly shadows of other individual peaks in this range. I practised my yodel which echoed and re-echoed with no human to hear. It was glorious, a sense of peace and freedom such as I never known before.

CHAPTER 8, Centennial summer, p. 196 - Memoirs Of A Bird In A Gilded Cage (1969)