It all began on 5 July 1825, Frederick Salomon Opperman and his 4 daughters were sold at a slave auction in Graaff-Reinet. His wife and his son were not sold on that day and they stayed behind. The slave owner initially allowed Frederik to visit his family from time to time; a journey that involved a 12-hour ride on horseback. However, when his family later had to move away from Graaff-Reinet he was refused permission to visit them.
Frederik escaped and was recaptured and beaten on, at least, three occasions before he finally managed to flee for good and settle near the Riet River.
The name comes from the word: 'Potscherf'- (meaning broken pot). This was due to the cracks that appear in the soil of the Mooi River Valley during a drought.
Boskop Dam and Nature Reserve is located in the Mooi River Valley 20 km North of the Town of Potchefstroom a short distance from the R501 Carletonville Road and 30 km from the N14 Ventersdorp/Krugersdorp Road on the Rysmierbult turnoff.