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Agfayan River
Ajayan River
Aquilla Creek
Armand Bayou
Arroyo Colorado
Austin Bayou
Badger Pass (Pioneer Mountains)
Barilla Draw
Bastrop Bayou
Beals Creek
Big Otter River
Agaga RiverAguada RiverAlatgue RiverAlfred RitscherAlmagosa RiverAplacho RiverAsalonso RiverAsan RiverAslinget RiverAsmafines RiverAstaban RiverAtantano RiverAtascosa RiverAtate RiverAttoyac BayouAyish BayouBayamón RiverBearskin RiverBeaver Creek (Wichita River)Bedias CreekBeech Creek (Texas)Big Guatali RiverBig Mineral CreekBig Sandy Creek (Trinity River)Big Sandy Creek (Village Creek)Bile RiverBlackwater River (Roanoke River)Blanco CreekBolanos River