Relief shown by gradient tints. From "Petermanns Geographische Mitteilungen," Jahrgang 1921, Tafel 9. In lower right margin: "Leitung: Prof. Paul Langhans." Original map is filed in the Map/Geospatial Center. A map reproduction is attached to companion volume: Locate by call number: G1 .M588 67 Jahr., 1921.