Choiseul Province for the island are Choiseul and Lauru. San Marcos is not commonly used at this present day. Choiseul Province was initially not part of the British Solomon Islands. Like Buka, Bougainville (both now part of Papua New Guinea's North Solomons Province), Santa Isabel, and the Ontong Islands, it was part of the German Solomon Islands in 1884. Fifteen years later, in 1899, Germany ceded Choiseul, Isabel and Ontong Java to the British to become part of the British Solomon Islands. In 1900, Charles Woodford, the Resident Commissioner for the Solomon Islands sailed to Choiseul via Isabel on a ship named
Choiseul Province Taro Island. The largest reptile is the saltwater crocodile ("Crocodylus porosus") known from Australia. Known birds are the Sanford's fish eagle ("Haliaeetus sanfordi"), the Pacific black duck ("Anas superciliosa"), and the eastern reef egret ("Egretta sacra"). Until the beginning of the 20th century, it was the only habitat of the now extinct Choiseul crested pigeon ("Microgoura meeki"). Choiseul is also an important breeding place for the loggerhead sea turtle ("Caretta caretta"). The flora is represented by mangroves and coconuts. Commercial logging continues to operate in Choiseul throughout the entire province. Nickel Mining is planned to commence in 2016 in Katupika