
vaashan nadhi

thekkukizhakkan britiish kolambiyayile padinjaaran koottene mekhalayile columbia nadiyude poshakanadiyaanu vaashan nadhi. nadiyude drainage basin ekadesham vistheernnathilaan.
theerchayaayum.
vaashan nadhi saadhaaranayaayi thekkott ozhukunnu, vaashan thadaakatthiloode kadannupokukayum soochi ferrick sameepam thaazhnna ambadayaala thadaakathil columbia nadiyil cherukayum cheiyunnu.
perinte uthbhavam.
1865-ll, paryaveshakanaaya jaims tenbul thante dayariyil thante party vaatt-shahn nadiyude theerathu camp cheiyukayaanennu rekhappeduthi. walter moberleyude 1866 leeii bhoopadam thadaakatheyum nadhia watshan ennu mudrakuthi. 1884-ll gilbert malcom sprott vaachu-shahn aruviye paraamarshichu. jorjju dosente 1889 leeii reportilaanu ippozhathe aksharavinyasam aadyamaayi prathyakshappedunnathu. eee paryavekshakar transcribe cheyyaan shramicha yadhaartha thaddesheeya padam, thalphalamaayi athinte ardham vyakthamalla. oru thadaakam, nadhi, kodumudi, parvathanirakal ennivaykku eee peru labhichittund.