The Black Hills National Forest is located in western South Dakota and northeastern Wyoming. Compared with other national forests, it has the longest history of regulated cutting and forest management.
Harmon, Wendell H.
"PONDEROSA PINE MANAGEMENT IN THE BLACK HILLS,"
Ames Forester: Vol. 42
, Article 2.
Available at: https://lib.dr.iastate.edu/amesforester/vol42/iss1/2