Copalis National Wildlife Refuge, Wildlife refuge in Grays Harbor County, Washington.

Copalis National Wildlife Refuge is the southernmost of three refuges in the Washington Maritime National Wildlife Refuge Complex, covering 60.8 acres of islands, rocks, and reefs off Grays Harbor County. Its dark, steep-sided rock formations rise from the Pacific, some topped with low vegetation and small evergreen trees. The refuge lies within the Washington Islands Wilderness and Olympic Coast National Marine Sanctuary.

The refuge was established in 1907 as one of the country's early conservation projects. This founding reflected growing recognition that wildlife habitats needed legal protection.

The refuge's islands are closed to the public, so the wildlife is watched from boats or the mainland, keeping a 200-yard buffer around each island. The three refuges cooperate with Olympic Coast National Marine Sanctuary and Olympic National Park on research into threats to local resources. James Island was returned to the Quileute in 1966 after it was found to lie within the Quileute Indian Reservation.

The islands are closed to the public, so wildlife can only be watched from boats or the mainland, keeping a 200-yard buffer around each island. There are no visitor facilities on the islands; bring your own food and gear. The three refuges lie within Olympic Coast National Marine Sanctuary.

The location sits along a major route where thousands of birds pass through each season on migration routes. This position makes it a valuable spot for understanding how birds move between north and south.