'Castle Rock', 1872. Rock formation on the Columbia River, USA: 'Rifted bowlders, like Castle Rock, stood alone, their base washed by the river, their heads upholding the sky'. From "Picturesque America; or, The Land We Live In, A Delineation by Pen and Pencil of the Mountains, Rivers, Lakes...with Illustrations on Steel and Wood by Eminent American Artists" Vol. I, edited by William Cullen Bryant. [D. Appleton and Company, New York, 1872]