Oʻahu Forest National Wildlife Refuge protects a remnant of Oʻahu’s native forest ecosystem on the upper slopes of the northern Koʻolau Range in Hawaii. Established in 2000 and covering about 4,525 acres, it was created to safeguard threatened and endangered fish, wildlife, and plants. Managed by the U.S. Fish and Wildlife Service, the refuge preserves habitat for some of the island’s rarest native species, including at least four endangered Oʻahu tree snails, fifteen endangered plant species, and native birds such as the Oʻahu ʻelepaio, ʻiʻiwi, pueo, and other honeycreepers. It remains closed to the public to prioritize protection of these vulnerable species.