UPDATED 7:01 AM EST, December 21, 2012
It was spotted Tuesday by the Coast Guard on Washington's rugged Olympic Peninsula.
Tsunami debris experts didn't try to reach it by ground until Thursday because of stormy weather and treacherous terrain — and then they were turned back within 200 yards of their goal when they reached a dangerously swollen stream, said David Workman, spokesman for the state Marine Debris Task Force.
