Simpang-kiri River

Simpang-kiri River (Sungai Simpangkiri, means: Left Junction River) is a river in Riau province, central-eastern Sumatra, Indonesia, about 800 km northwest of the capital Jakarta.

Geography
The river flows in the central area of Sumatra with predominantly tropical rainforest climate (designated as Af in the Köppen-Geiger climate classification). The annual average temperature in the area is 24 °C. The warmest month is March, when the average temperature is around 26 °C, and the coldest is January, at 23 °C. The average annual rainfall is 2667 mm. The wettest month is November, with an average of 402 mm rainfall, and the driest is June, with 104 mm rainfall.