NOAA data buoy 46027
According to the National Data Buoy Center website, this 3-meter discus buoy had been moored 8 nautical miles northwest of Crescent City, California, until it went adrift on December 11 and beached near Gold Beach, Oregon, two days later. That's a distance of roughly 50 miles (80 km).
The National Data Buoy Center is part of the National Oceanic and Atmospheric Administration (NOAA) and oversees a network of buoys that hourly transmit information about wind, water and atmosphere conditions. This one stopped transmitting once it got stranded on the beach.
It was pretty exciting to find this huge structure on the beach! It looks a lot like a space capsule to me! The marine life on the bottom is also very interesting!
Photo published in Science Magazine, June 2015