Clarence Petty

One of his enduring legacies is the classification of land in the Park as either forest or wilderness; this classification determines permitted uses. In wilderness areas, motor vehicle access is very limited; snowmobiles, all-terrain vehicles, seaplanes, and motorboats are prohibited. The classification resulted in large part from his study of more than 1,300 miles (2,100 km) of rivers and streams, a project he undertook by canoe and portage in the early 1970s. He was in his 60s at the time.

Again struggling in college, he was given a job to teach the use of a transit theodolite and survey equipment, though, early on, he barely understood these instruments himself. Teaching others helped Petty develop both a better understanding of surveying and a better appreciation for social interactions. He graduated in June 1930.

Petty graduated from Saranac Lake High School in 1925, struggling with mathematics. In the same year, he matriculated into the forestry program at the New York State College of Forestry at Syracuse University.

Clarence Adelbert Petty (August 8, 1905 – November 30, 2009) was an American Supervising Forest Ranger in the Adirondack Forest Preserve, a conservationist and an avid outdoorsman. He is best known for his advocacy supporting protection of the Adirondack Park.