Martin Litton

Martin Litton (February 13, 1917 – November 30, 2014) was an American environmental activist and editor. He was a Grand Canyon river runner. Litton was best known as a staunch opponent of the construction of Glen Canyon Dam and other dams on the Colorado River.
On November 30, 2014, Litton died at his home in Palo Alto, California, aged 97.