Possible USS Shark Cannons found

It's very possible they are from the 1846 shipwreck of the USS Shark, a survey ship that struck Clatsop Spit while leaving the Columbia River. If true, these have been buried in the sand for more than 150 years.

http://www.oregon.gov/OPRD/PARKS/cannon.shtml

Photos

http://www.oregon.gov/OPRD/PARKS/cannon_photos.shtml