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| Location The mouth of the Yupna River (Jupna River) is located on the north coast of New Guinea. Prewar and during the Pacific War located in Madang District in the Territory of New Guinea. Today, located in Rai Coast District of Madang Province in Papua New Guinea (PNG). Ki-49-II Helen Force landed north of the Yupna River (Jupna River) Contribute Information Do you have photos or additional information to add? Last Updated November 22, 2025 |
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