Mariental is a city of 10,000 inhabitants in south-central Namibia, lying on the B1 national road 232 kilometres (144 mi) north of Keetmanshoop and 274 kilometres (170 mi) southeast of Windhoek. It lies at an elevation of 1,090 metres (3,580 ft). Mariental is connected to the TransNamib railway line from Windhoek to Keetmanshoop.