Lierop in 1865
|• Total||21.57 km2 (8.33 sq mi)|
Lierop was a separate municipality until 1935, when it became part of Someren. Lierop is well known internationally amongst motocross enthusiasts as a venue for the world championship Motocross Grand Prix series. The circuit, situated approximately 1 km from the village, stages Grand Prix events in September under the organisation of the local MAC Lierop club. The circuit, consisting of loamy sand, is seen as one of the toughest in Europe.
- J. Kuyper, Gemeente Atlas van Nederland, 1865-1870, "Lierop". Map of the former municipality, around 1868.