Concept
Version 13
Created by Boundless
Agricultural Initiatives and Recovery
Department of Agriculture, Forest Service, Civilian Conservation Corps (CCC) Planting Crew, author unknown, 1939.
Original caption: "CCC planting crew planting 2-0 red pine in furrows using Michigan planting bars."
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"800px-Photograph_of_Civilian_Conservation_Corps_CCC_Planting_Crew_-_NARA_-_2129004.jpg."
https://commons.wikimedia.org/wiki/File:Photograph_of_Civilian_Conservation_Corps_(CCC)_Planting_Crew_-_NARA_-_2129004.jpg
Wikipedia
CC BY-SA 3.0.