Summer in Oregon looks as if it was drawn by a child with a joyful imagination and a big box of crayons.   The sky is a deep and cloudless blue, the mountains are sharp-peaked and snow-capped, the trees rise like green rockets, the spray from the waterfalls dazzles into little rainbows.  Add in other elements that crayons cannot capture -- the champagne air, the roar of whitewater rivers, the chill of starry nights -- and you have a kind of s... Full Story