The US took possession of the island in 1857, and its guano deposits were mined by US and British companies during the second half of the 19th century. In 1935, a short-lived attempt at colonization was begun on this island—as well as on nearby Howland Island—but it was disrupted by World War II and thereafter abandoned. The island is now a National Wildlife Refuge run by the US Department of the Interior; there is a day beacon near the middle of the west coast.

Low, nearly level coral island surrounded by a narrow fringing reef. Treeless, sparse and scattered vegetation consisting of grasses, prostrate vines, and low growing shrubs; primarily a nesting, roosting, and foraging habitat for seabirds, shorebirds, and marine wildlife.

Animal life includes ruddy turnstones, bar-tailed godwits, sanderlings, Pacific golden plovers, albatross, bristle-thighed curlews, Gray Reef Sharks, Spinner dolphins, monk seals, seals, hermit crabs, Green turtles and hawksbill turtles.

Equatorial: scant rainfall, constant wind, burning sun.

There is an abandoned World War II runway of 1,665 m (5,463 ft), completely covered with vegetation and unusable.

There is one small boat landing area along the middle of the west coast.