Upper Hutt is a satellite city of Wellington, New Zealand. The city is 30 kilometres northeast of the Wellington central business district, and is centred on the upper (northern) valley of the Hutt River which winds its way from northeast to southwest on its way to its outflow into Port Nicholson harbour. The Hutt Valley widens briefly into a 2500 metre wide floodplain between the Rimutaka and Akatarawa Ranges before constricting nine kilometres further downstream at the Taita Gorge, which separates Upper Hutt from its neighbour, Lower Hutt. The city's main urban area is located on this plain. The Upper Hutt city extends to the top of the Rimutaka saddle to the northeast and into the rough hill country of the Akatarawa ranges to the north and northwest, almost reaching the Kapiti Coast close to the town of Paekakariki. The main suburbs of Upper Hutt, from northeast to southwest, include: Timberlea, Brown Owl, Maoribank, Mangaroa, Totara Park, Kingsley Heights, Wallaceville, Trentham, Heretaunga, Silverstream, and Pinehaven. Upper Hutt is sited on an area originally known as Orongomai, and that of the river was Heretaunga (still the name of a suburb of Upper Hutt).