Afterwards, Gordon was sent to delineate the frontier between Ottoman Armenia and Russian Armenia, the highlight of which was tobogganing down Mount Ararat. Gordon continued surveying, marking off the boundary into Asia Minor. During his time in Armenia, Gordon embraced the new technology of the camera to take what the Canadian historian C. Brad Faught called a series of evocative photographs of the people and landscape of Armenia. Throughout his life, Gordon was always a keen amateur photographer and was elected a fellow of the Royal Geographical Society to honour him for his Armenian photographs. Gordon returned to Britain in late 1858, and was appointed as an instructor at Chatham. He was promoted to captain on 1 April 1859.