(Warrenton, OR) -- A 46-foot dead fin whale has washed up on a beach south of Warrenton, on the northern Oregon Coast. The Seaside Aquarium says it's the only the second fin whale to do that in Oregon in the last 30 years. The whale was originally tangled in fishing gear, but the Aquarium says it doesn't appear to be the cause of the whale's death. They think someone removed the fishing gear, because the whale appeared to still be alive in the surf. Samples from the whale will be taken by biologists who will conduct a necropsy to determine the cause of death.