There are several geographic features in Oregon named Haystack Rock, including two off the Oregon Coast. The tallest of these is in Tillamook County, located off Pacific City and near Cape Kiwanda. It stands 327 feet above the sea and is the world's fourth largest sea stack or off-shore monolith in the world.
Another Haystack Rock is a 235-foot sea stack in Cannon Beach, Oregon. It is sometimes claimed locally to be the third-tallest such "intertidal" (meaning it can be reached by land) structure in the world, but there are no scientific references to support this. A popular tourist destination, the monolithic rock is adjacent to the beach and accessible by foot at low tide.
The third Haystack Rock is in Coos County near Bandon.
The Haystack Rock tide pools are home to many intertidal animals, including starfish, sea anemone, crabs, chitons, limpets, and sea slugs. The rock is also a nesting site for many sea birds, including terns and puffins.