1980 Operation Evergreen begins with $10,000 raised from alumni interested in tree-planting projects on campus [Stymiest, Ruth Anne. "Centennial: An Illustrated History, 1885-1985". 1985, pg. 152] Spring 1984 - final phases of Operation Evergreen take place with students planting more than 200 trees on campus bringing the total number of trees planted to 1,500 [Stymiest, Ruth Anne. "Centennial: An Illustrated History, 1885-1985". 1985, pg. 170-172]
the newsletter for the library at the South Dakota School of Mines and Technology