Bí-kok Be̍k-se-ko pian-kài
Hun-khui Bí-kok kap Be̍k-se-ko ê pian-kài, oa̍h sai-pêng sī Baja California ê Tijuana (Be̍k-se-ko hong-bīn) kap California ê Imperial Beach (Bí-kok hong-bīn); oa̍h tang-pêng sī Tamaulipas ê Matamoros (Be̍k hong) kap Texas ê Brownsville (Bí hong).
Pian-kài lio̍k-tē pō͘-hūn ê tn̂g-tō͘ ū 3,145 kong-lí, sì-ûi chāi tē-lí siōng ū Be̍k-se-ko Oan, Grande Hô, Sonora Soa-bo̍k, Chihuahuan Soa-bo̍k, kap Colorado Hô hái-kháu.