After 71 kilometres, the N9 and the R62 split, with the R62 becoming its own road eastwards while the N9 turns northwards and enters the town of Uniondale, before becoming the Buyspoort Pass and proceeding onwards to Willowmore in the Eastern Cape.

The N9 continues northwards, entering the Northern Cape, through Noupoort, to end at an intersection with the N1 just outside Colesberg (west of the town centre).

An urban legend in the "vanishing hitchhiker" tradition arose after a girl named Marie Charlotte Roux was killed in an auto accident not far from Uniondale on Easter Sunday of 1968.

According to press reports, beginning in 1973 and for years afterward around the anniversary of her death, the girl's spirit hitchhiked along the road and allegedly vanished after being picked up by various drivers.

According to folklorist Sigrid Schmidt: The South African press played its role in the game of legend-telling perfectly.