1938
% complete
1947
http://www.ezilon.com/maps/images/usa/california_simple.gif
1957
1961
http://www.prolificmagazine.com/wp-content/uploads/2012/07/Profile-41.png
1964
http://upload.wikimedia.org/wikipedia/en/f/fd/El_capitan_and_merced_river.jpg
1968
Video.
1971
http://www.fresnostatenews.com/archive/2007/05/Chouinard,-Malinda-07.jpg
1989
1990
Environmental Video.