Siak basin

Riau (Jawi: ) is a province of Indonesia. It is located on the central eastern coast of the island of Sumatra, and extends from the eastern slopes of the Barisan Mountains to the Malacca Strait, including several large islands situated within the Strait. The province shares land borders with North Sumatra to the northwest, West Sumatra to the west, and Jambi to the south, and a maritime border with the Riau Islands and the country of Malaysia to the east. It is the second-largest province in the island of Sumatra after South Sumatra with a total land area of 93,356.32 km², and an estimate

Pekanbaru () is the capital city of the Indonesian province of Riau, and a major economic center on the eastern side of Sumatra Island with its name derived from the Malay (Indonesian) word for 'new market' ('pekan' is market and 'baru' is new). It has an area of , with a population of 897,767 at the 2010 Census, and 983,356 at the 2020 Census; the official estimate as at mid 2024 was 1,167,599 (comprising 586,917 males and 580,682 females). It is located on the banks of the Siak River, which flows into the Strait of Malacca, Pekanbaru has direct access to the busy strait and has long been kno

regency in Riau Province, Indonesia

regency in Riau Province, Indonesia

regency in Riau Province, Indonesia

river in Siak, Riau, Indonesia

human settlement in Sumatra, Indonesia

river in Riau, Indonesia