It lies southeast of Bougainville (part of Papua New Guinea), west of Santa Isabel Island, and north of Vella Lavella, Kolombangara & New Georgia.

Taro Island, the capital of the province, has an area of 1.5 square kilometres (0.58 sq mi).

He called it San Marcos, because he saw the island from Santa Isabel on the Day of Saint Mark.

Choiseul Province was initially not part of the British Solomon Islands Protectorate (BSIP).

The award means that Taro Hospital advocates for exclusive breastfeeding for babies up to six months before introduction of soft diet.

It also has links to community groups that support, protect and promote the practice of exclusive breast feeding of babies within Taro Hospital catchment area.

It pays emphasis on preventative activities down to the rural areas with the help of community groups, churches and donor partners.

Solomon Telekom Company Limited is the sole provider of both landline and mobile phone communication in the province.

The three denominations involved in Missionary work in Choiseul were the Methodists, Catholics and the Seventh Day Adventists."

They have a team called Lauru Kuvojo, which in 2005 took part at the Solomon-Cup, the national football championship of the Solomon Islands.

Most of the 14 wards throughout Choiseul sent representative teams to participate at the Kuvojo Cup tournament in both soccer and netball.

The biggest mammal is the endangered dugong, a seacow which occurs in the waters near Rob Roy and Taro Island.

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).

[10] A proposal to establish over 4,000 hectares (15 sq mi) in north Choiseul as oil palm plantation will also have significant environmental impact.