Koski Tl

Koski Tl (; ) is a municipality of Finland.
It is located in the Southwest Finland region and was part of the former province of Western Finland. The municipality has a population of () and covers an area of of which is water. The population density is .
"Tl" in the name means the former province of Turku and Pori (). It was attached to the name to distinguish Koski Tl from another municipality named "Koski", Koski Hl ("Hl" for the former province of Häme, ). Koski Hl was renamed Hämeenkoski in 1995 but Koski Tl has not changed its name.
Koski Tl is unilingually Finnish.
Koski Tl's neighbouring municipalities are Loimaa, Marttila, Pöytyä, Salo, Somero and Ypäjä.
Sights.
Hämeen Härkätie runs through Koski and it crosses the Paimio River in the center of Koski. 
The church of Koski Tl is designed by architect Toivo Paatela and it was completed in 1935. 
There is also an observation tower near the highest points of Hevonlinna ridge and Hevonlinnanjärvi.
Yrjö Liipola Art Museum is exhibiting Yrjö Liipola's art collection.