Northern Prairie Wildlife Research Center
Prior to construction of the Northern Pacific Railroad across Montana there apparently was additional survey work. We located two publications resulting from the survey but were unable to find additional information on the expedition.
Leiberg, J.B. 1884. Notes on the flora of western Dakota and eastern Montana adjacent to the Northern Pacific Railroad. Bot. Gaz. 9:103-107; 126-129. Newberry, J.S. 1884. Notes on the geology and botany of the country bordering the Northern Pacific Railroad. Ann. N.Y. Acad. Sci. 3:242-270.