Detail of a manmade retaining wall, situated near the Alcatraz Cellhouse on the island’s summit.
February 4, 2011
Detail of a manmade retaining wall, situated near the Alcatraz Cellhouse on the island’s summit.
February 4, 2011
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© 2011 Ronald D. Henggeler. All rights reserved
The image is not in the public domain. It is the sole property of the artist and may not be reproduced on the internet, sold, altered, enhanced, modified by artificial, digital or computer imaging or in any other form without the express written permission of the artist.