Editing Stewart Udall (section)

===Later years===
After leaving government service in 1969, Udall taught for a year at the School of Forestry at [[Yale University]] as a visiting professor of environmental humanism.<ref>{{cite web |author=Karen Meyers |url=http://www.library.arizona.edu/exhibits/sludall/biography.htm |title=Stewart Lee Udall: Biography |website=Library.arizona.edu |date=January 31, 1920 |access-date=September 28, 2016 |archive-date=April 2, 2010 |archive-url=https://web.archive.org/web/20100402002737/http://www.library.arizona.edu/exhibits/sludall/biography.htm |url-status=dead }}</ref> He later devoted his time to writing books and articles about environmental issues and to practicing law.  In 1971, he published ''America's Natural Treasures: National Nature Monuments and Seashores'', which is about America's national parks, monuments, and reserves.<ref>{{cite web|url=http://www.udall.gov/AboutSLUdall/69to94Accomplishments.aspx |title=Archived copy |access-date=July 22, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100527114429/http://udall.gov/AboutSLUdall/69to94Accomplishments.aspx |archive-date=May 27, 2010 }}</ref>

In 1979, he left Washington to return to the West. In 1980, Udall was elected to the Central Arizona Water Conservation District Board and commissioned as a member of the Morrison Institute.<ref name="library.arizona.edu"/> Udall was presented with the Ansel Adams Award in 1986, the Wilderness Society's highest conservation award.<ref name="library.arizona.edu"/> He also was awarded the United Nations Gold Medal for Lifetime Achievement.<ref name="library.arizona.edu"/> Udall received the Common Cause Public Service Achievement Award for his lifelong protection of the environment and defense of American citizens who were victims of nuclear weapons testing.<ref name="library.arizona.edu"/>

In 1987, he published ''To the Inland Empire: Coronado and our Spanish Legacy'', which retraces the trails of Spanish explorer [[Francisco Vásquez de Coronado]] as he searched for the "golden cities" of Cibola in what now is Arizona, New Mexico, Oklahoma, and Texas.<ref name="library.arizona.edu"/> Udall published ''The Quiet Crisis and the Next Generation'' in 1988, a revised edition with nine new chapters of ''The Quiet Crisis'' (1963). "The Quiet Crisis" introduced the Myth of Superabundance.<ref name="library.arizona.edu"/> In 1990, he co-authored ''Beyond the Mythic West'', which examines effects of change upon the inhabitants and lands of the western United States.<ref name="library.arizona.edu"/> In 1998, he published ''The Myths of August: A Personal Exploration of Our Tragic Cold War Affairs with the Atom.''<ref>{{cite web |url=http://www.indiancountrytoday.com/national/89260467.html |title=Stewart Udall, former Interior secretary, dies &#124; Indian Country Today &#124; National & World News |access-date=July 22, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100405172343/http://www.indiancountrytoday.com/national/89260467.html |archive-date=April 5, 2010 }}</ref>

In November 2009, Congress enacted legislation to honor Stewart Udall by renaming the Morris K. Udall Foundation as the [[Morris K. Udall and Stewart L. Udall Foundation]], in recognition of the historic Interior Secretary's contributions. The Udall Foundation, an independent federal agency, was created initially to honor the legacy of the late [[Morris Udall]], who represented Southern Arizona in the U.S. House of Representatives for thirty years. Stewart Udall, who also represented Southern Arizona in Congress from 1955 to 1961, is Morris Udall's older brother. The two worked together on many environmental and Native American initiatives while Stewart Udall was Secretary of the Interior and Morris Udall a member of Congress. Congress recognized that the Udall legacy really was a shared legacy, rooted in the work of the Udall brothers, which dominated environmental reform for three decades.

One of Udall's last essays, published in 2008,<ref>{{Cite web |last=Udall |first=Stewart, Lee |date=2008-03-31 |title=A message to our grandchildren |url=https://www.hcn.org/issues/issue-367/a-message-to-our-grandchildren/ |access-date=2025-01-03 |website=High Country News |language=en-US}}</ref> was his "[https://sfct.org/udall-a-letter-to-my-grandchildren/ Letter to My Grandchildren]", written with his wife, Ermalee, which asked for their grandchildren's assistance in advocating for protection of the Earth. This letter resulted in Udall being contacted by the VillageTown Stewards who asked that they videotape the thoughts in that letter, since it was more likely that the generation of his grandchildren watch internet videos than read letters. Udall agreed, and the video may be seen on-line at, ''[https://vimeo.com/10717185 Stewart Udall on History: the greatest mistake]''. This video was transcribed and adapted to a chapter of a book, ''[https://www.amazon.com/dp/0958286825 Life Liberty Happiness]''. Udall also agreed to serve as Chairman Emeritus of the VillageTown Stewards. The video was filmed coincidentally on the Summer solstice of 2009 and Udall died nine months later on the Spring equinox. His public memorial was held on the Summer solstice of 2010. It is believed this video was the last recording of Udall's views.