10365
In 1922 , Aldo Leopold , a United States Forest Service supervisor of the Carson National Forest proposed that the headwaters area of the Gila River should be preserved by an administrative process of excluding roads and denying use permits .
 person: Aldo Leopold; organization: United States Forest Service; location: Carson National Forest; location: Gila River
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Aldo Leopold; organization: United States Forest Service; location: Carson National Forest; location: Gila River