Haystack Rock is a 235-foot sea stack in Cannon Beach, Oregon. It is sometimes claimed locally to be the third-tallest such "intertidal" structure in the world, but there are no official references to support this. A popular tourist destination, the monolithic rock is adjacent to the beach and accessible by foot at low tide. 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.
Haystack Rock is located about south of downtown Cannon Beach in Clatsop County and about west of Portland. The nearest major road is U.S. Route 101. Haystack Rock is part of the Tolovana Beach State Recreation Site. The area below the mean high water (MHW) level is managed by Oregon Parks and Recreation. The area above the MHW level is managed by the Oregon Islands National Wildlife Refuge of the United States Fish and Wildlife Service.