Department of Madre de Dios in the context of Regional Government of Madre de Dios

Arequipa (Quechua: Ariqipa) is a department of Peru. Located to the country's southwest, it is the sixth largest department in Peru, after Puno, Cuzco, Madre de Dios, Ucayali, and Loreto, its sixth most populous department, and its eleventh least densely populated department. It is bordered by the departments of Ica, Ayacucho, Apurímac and Cuzco to the north, Puno to the east, the Department of Moquegua to the south, and the Pacific Ocean to the west. It is administered by a regional government. Its capital, also called Arequipa, is Peru's second-largest city.

Cusco, also spelled Cuzco (Spanish pronunciation: [ˈkusko]; Quechua: Qusqu suyu [ˈqɔsqɔ ˈsʊjʊ]), is a department of Peru. It is the fourth-largest in the country, after Madre de Dios, Ucayali, and Loreto, and borders the departments of Ucayali on the north; Madre de Dios and Puno on the east; Arequipa on the south; and Apurímac, Ayacucho and Junín on the west. It is administered by a regional government. Its capital is Cusco, the historical capital of the Inca Empire.

Puno (Spanish pronunciation: [ˈpuno]; Aymara and Quechua: Punu) is a department of Peru. Located in the country's southeast, it is the fifth largest department in Peru, after Cuzco, Madre de Dios, Ucayali, and Loreto. It is bordered by Bolivia to the east, the departments of Madre de Dios to the north, Cusco and Arequipa to the west, Moquegua to the southwest, and Tacna to the south. It is administered by a regional government. Its capital is the city of Puno, which is located on Lake Titicaca in the geographical region known as the Altiplano or high sierra.

Cusco, also spelled Cuzco (Spanish pronunciation: [ˈkusko]; Aymara and Quechua: Qusqu [ˈqɔsqɔ]), is a department of Peru. It is the fourth-largest in the country, after Madre de Dios, Ucayali, and Loreto, and borders the departments of Ucayali on the north; Madre de Dios and Puno on the east; Arequipa on the south; and Apurímac, Ayacucho and Junín on the west. It is administered by a regional government. Its capital is Cusco, the historical capital of the Inca Empire.

Tumbes (Spanish pronunciation: [ˈtumbes]) is a department of Peru. It is located in the country's northwestern coast, bordering Ecuador. Due to its location near the Equator, it has a warm climate, with beaches that are considered among the finest in Peru. Despite its small area, the region contains a wide variety of ecosystems. It is the smallest department in Peru and its third least populous department after Moquegua and Madre de Dios, but it is also its third most densely populated department, after La Libertad and Lambayeque. It is administered by a regional government. Its capital is the city of Tumbes.