Columbia Koân-phiâⁿ

Columbia Koân-phiâⁿ (Eng-gí: Columbia Plateau) sī Bí-kok Washington, Oregon kap Idaho pō͘-hūn tē-khu chó͘-sêng ê chi̍t tè tē-chit-ha̍k kap tē-lí-ha̍k khu-he̍k. Columbia Koân-phiâⁿ sī Cascade Soaⁿ-me̍h kap Rocky Soaⁿ-me̍h tiong-kan ê chi̍t tè koân-phiâⁿ, tiong-kan ū Columbia Hô lâu keng-kòe.

Columbia Koân-phiâⁿ

Gōa-pō͘ liân-kiat siu-kái