Batang Gadis basin

province of Indonesia

Padangsidimpuan (also known as Padang Sidimpuan) is a city in North Sumatra, Indonesia, and the former capital of South Tapanuli Regency, which surrounds the city. It covers an area of 159.28 km2 and had a population of 178,818 according to the 2000 Census. This increased to 191,554 in the 2010 Census and 225,105 in the 2020 Census. The official estimate as of mid-2023 was 236,217, comprising 119,228 males and 116,989 females.

regency in North Sumatra Province, Indonesia

Sorikmarapi is a highly vegetated stratovolcano on Sumatra island, Indonesia. It has a 600 m wide of crater lake at the summit and some sulfur deposits. A small parasitic crater, called Danau Merah, is found at the upper southeast flank of the mountain and several solfatara fields at the eastern flank. During the 19th and 20th century, small phreatic eruptions occurred.

Panyabungan is a town and an administrative district (kecamatan) in the North Sumatra province of Indonesia and it is the seat (capital) of Mandailing Natal Regency.

Sibualbuali is a stratovolcano in northern Sumatra, Indonesia. It has two solfatara fields on the eastern flank. There is a rhyolitic-dacitic lava dome, erupted from the Toru-Asik fault.

Lubukraya is an andesitic stratovolcano on Sumatra island, Indonesia. It has a broad crater breached to the south and a lava dome at the southern foot of the volcano.

river in North Sumatra, Indonesia