Riihimäki is a city in Southern Finland, located about 70
kilometers north of Helsinki and 28 kilometers southeast of
Hämeenlinna. Riihimäki is located in the southern part of Kanta-Häme
County. Its neighboring municipalities are Janakkala in the north,
Hausjärvi in the east, Hyvinkää in the south and Loppi in the west.
Riihimäki was founded as a market town in 1922, and in 1960
Riihimäki became one of the first six new cities in Finland.
Riihimäki has a population of about 30,000. It is located at a railway crossroads and has been a garrison town since the days of autonomy. A glass factory operated in the locality for almost the entire 20th century, and today the Finnish Glass Museum is located in the same building. The city also has a hunting museum, an art museum, Würth Finland's headquarters and logistics center, and Valio's Southern Finland fresh produce dairy.
Scenically, Riihimäki is farmland and lake land. The western part of the city belongs to the Tammela upland region and the eastern part to the farming and lake region of Keski-Häme. The relative altitude variation is 30-75 meters and the area is hilly in nature. The highest point is on Hatlamminmäki, which is 165 meters above sea level.
Riihimäki's nature includes forests, bogs and water bodies in many ways. Of the forests, hexagonal, grove-like fabrics are the most common. The groves account for more than 30 percent of Riihimäki's forest lands. There are also plenty of linden forests and walnut bushes also occur. Among the rocks, a rare rock type, gabro, is widely found in the southern parts of the city. .
Call Riihimäki has even more than usual for the conditions in Southern Finland, almost 10%. The zone of the prevailing bog combination types in Riihimäki are shield oases. However, most of the bogs belong to the oasis and only the big Eye-catching shield oasis. Of the bog types, Riihimäki has a wide range of bogs, ravens and nevos. Hatlamminsuo, located in the northeast corner of the city, near the border of Hausjärvi, has remained the most natural of the bogs.
In the wake of the ice age, Riihimäki has boulders, ridges, ancient shores and soils. The first Salpausselkä also passes through Riihimäki.
There are only about 500 hectares of water bodies in Riihimäki. For the most part, the Riihimäki area belongs to the Vantaanjoki watershed and the northernmost parts to the Kokemäki watershed. The city is divided in an east-west direction by a nationwide watershed, on top of which the city center is located. The waters of the area are mainly diverted along small ditches and streams. The lakes of Riihimäki are all located in the southern part of the city. The largest lakes are Hirvijärvi, Paalijärvi and Suolijärvi, which extends to Hyvinkää. The smallest lakes are Vatsianjärvi, Arolammi and two Vähäjärvi, one of which flows into Paalijärvi and the other into Hirvijärvi. The Vantaanjoki River flows in the Riihimäki area for about 13 kilometers. The tributaries of the Vantaanjoki River in Riihimäki are Herajoki and Paalijoki. In the north, the Riihiviidanoja, which belongs to the Kokemäenjoki catchment area, flows into the Punkanjoki River and further along the Puujoki River to the north.