1 photo

• Sort by: number of views (most to least) number of views (least to most) number of comments (most to least) number of comments (least to most) number of favorites (most to least) number of favorites (least to most) date uploaded (newest first) date uploaded (oldest first) random

• Forester chips base of tree to inspect cambium (a protective layer between bark and inner wood). If this is damaged, tree cannot survive and will be marked to cut, September 1973

  • Uploaded by: U.S. National Archives
  • License: No known copyright restrictions
  • 2 comments
  • 2 favorites
  • 7,398 views
  • Date taken: 1973-09
  • Date uploaded: 2012-05-07
  • Tags: nara:arcid=553640, usnationalarchives, environmentalprotectionagency, documerica
  • Visibility: public