Endrick River is a perennial river of the Shoalhaven catchment located in the Southern Tablelands region of New South Wales, Australia. Endrick River rises below Quiltys Mountain on the western slopes of the Budawang Range near Sassafras, and flows generally south southwest, west, northwest, and then north by west, joined by six minor tributaries, bef…Endrick River is a perennial river of the Shoalhaven catchment located in the Southern Tablelands region of New South Wales, Australia. Endrick River rises below Quiltys Mountain on the western slopes of the Budawang Range near Sassafras, and flows generally south southwest, west, northwest, and then north by west, joined by six minor tributaries, before reaching its confluence with the Shoalhaven River near Nerriga, descending 424 metres over its 32 kilometres course.