migratory native fish with estuarine/marine juvenile stages, blocking species including Australian bass from more than 80% of their former range in the Shoalhaven system. Recent stockings of hatchery-bred Bass in Lake Yarrunga are an attempt to remediate the situation. A fishway for Tallowa Dam was completed in August 2009. This fishway is designed to allow for the movement of bass and other native fish over the dam. Lake Yarrunga has also suffered the illegal introduction of highly damaging European carp, which are now present in high densities. History Indigenous history The traditional custodians of the land are Jerrinja tribal peoples the surrounding Shoalhaven River, in its lower reaches, are the Aboriginal peoples of the lower catchment are Jerrinja tribal peoples which are the traditional custodians of the Shoalhaven . Some of the culturally important Aboriginal places in the Shoalhaven include Coolangatta Mountain, Bundarwa (Beecroft Headland), Cambewarra Mountain, Didthul or Pigeon House Mountain, Kangaroo Valley, Burrill Lake, and Murramarang Aboriginal Area and its environs. The upper part of the Shoalhaven river, in the district around modern-day Braidwood, is the traditional land of the Walbanga people. European history The explorer and navigator George Bass found the entrance to the Shoalhaven River during his whaleboat voyage down the south coast of New South Wales in 1797. He gave the name Shoals Haven to the river (now known as the Crookhaven River) because of the shoals of mud and sand he found at the river mouth. Approximately west of Nowra are a series of properties along the banks of the Shoalhaven River that were a gift to the people of Australia from Arthur Boyd, his wife, Yvonne, and the Boyd family. Entrusted to the Bundanon Trust, along with further gifts by Boyd, including copyright of all of his artwork, these properties provide an environment that promotes visual arts, writing, music and other performing arts, and the promotion of education and research in the arts. Crossings The river crossings, from its headwaters to its river mouth, include: Ballalaba bridge Farringdon crossing between Farringdon and Bendoura Bombay bridge Warri Bridge carries the Kings Highway, near Braidwood. A bridge at this location was first opened on 23 September 1874, and later replaced by the current structure. Stewart's Crossing is a ford on Stewart's Crossing Road. Oallen Crossing was formerly a flood-prone single-lane timber bridge with a low-level concrete floodway for the Oallen Ford Road at Oallen Ford,