2 in KayakTrace Lewis,Clark RouteDaA%bitOfEa*1LEWISTON, Idaho -Ml- Two kayak padcUers, John A. Davidson, Carlisle, Pa., and Jimmy E. Carnes, Wheeling, W. Va., were in Lewiston Saturday after completing the first 461 miles of a 4,000 - mile journey that began May 19 at Astoria, Ore., and will end in Chesapeake Bay.The two have averaged 22 miles a day paddling their kayak up the Columbia and Snake rivers, passing through navigation locks along the Columbia and at Ice Harbor Dam on the Snake.Ike western half «f their journey fellows much the same rente taken by theU and Clark expcaditlen Hi11(t w«wiHiaRiCiyear* ago.After paring their equipment o bare essentials Saturday, they dinned to paddle the kayak rom Lewiston op the Clearwa-er River to the mouth of the Lodisa River and up the Iaxfhsa is far as possible.From there, they win portage across the BHteroot Mountains- but by highway, not by trail— to Missoula, Mont, and the □ark Fork River. They will travel along the Clark Fork to Garrison, Mont., then portage across the Continental Divide to Helena, Mont. to begin their journey down the Missouri River to St Louis, Mo.theD;Stt(tIchPakk