Arthur Hawthorne Carhart (1892–1978) was a US Forest Service official, writer and conservationist who inspired wilderness protection in the United States.
In 1916, he was the first to graduate from Iowa State College with a Bachelor of Science degree in Landscape Design and City Planning.
He worked for a Chicago landscaping architecture company until 1917, when he entered the United States Army for World War I.
His education was put to use and he was made a lieutenant as a bacteriologist and public health officer in the Sanitary Corps at Camp Mead, Maryland.
He left the Army after the war ended and moved to Denver, Colorado, to work for the United States Forest Service.
These areas can never be restored to the original condition after man has invaded them, and the great value lying as it does in natural scenic beauty should be available, not for the small group, but for the greatest population.
In 1922 Federal funding was lost, and he left the Forest Service for private practice in land architecture and city planning as a partner in McCrary, Culley & Carhart.
Carhart wrote historical novels, westerns, and books, stories and articles about forestry, wildlife management, and conservation.