Slim River is a small town in Perak, Malaysia. It is about 100 km (driving time 45 minutes) from Kuala Lumpur. It is situated in the southern part of Perak and is 20 km north of Tanjung Malim. It is about 100 km (driving time 1hour) from Ipoh. Slim River is the second biggest town in Tanjung Malim district.
The town is named after a nearby river, Sungai Slim. The word Sungai means river in Malay. The river was actually named after an English captain with last name Slim in the 18th century. He accidentally went up the river instead of the river of Perak which was the main waterway back then.
more about slim river: here