Back from the Brooks Range early. Total whiteout conditions on the Koyakok, ice road to Bettles closed due to drifting snow. Snow drifting onto the Dalton highway all the way down to the White Mountains. Had to wait for Semi's going north to bust thru snow drifts, then I would have to drive their ruts to get thru hoping another semi was not following the trail breaker. More later after I get some rest. Rog