Berthrong, I. PRelief shown by hachures.; Insets: Alaska -- Philippine Islands -- Tutuila Group of the Samoan Islands -- Manua -- Guam or Cuajan Island -- Hawaiian Islands -- Porto Rico -- Panama Canal -- Isthmus of Panama showing location of canal.59 x 81 centimetersJPEGUMN_ALMA:9952828550001701engDept. of the Interior, General Land Office (Washington, D.C)PublicUnited States showing routes of principal explorers and early roads and highwaysMapsUniversity of Minnesota