In 1853 Angas was appointed to a position at the Australian Museum in Sydney, eventually becoming Director and staying a total of seven years. Angas was in Sydney when gold was first discovered near Bathurst, New South Wales. Travelling there to record the gold diggings he executed a number of drawings of the scenes that he found. These were published in Sydney and subsequently in London. Angas was represented at the 1855 Paris exposition with five other Australian artists including Conrad Martens, Frederick Terry and Adelaide Ironside, the first time Australian artists had been represented at a major overseas display. Angas returned to South Australia in 1860, and finally went back to England in 1863. Angas published several books on Australia and Polynesia as well as illustrating accounts of exploration by John McDouall Stuart and John Forrest, and contributed significantly to conchology with his descriptions and illustrations.