A Pictorial Essay of the RCAF carrying out the first Aerial Topographical Photographic Survey of Canada in the early 1920's. The book contains over 90 vintage photographs of the RCAF involved in this historic aviation project. The location of these images of the RCAF crew at work and occasionally at play, spans the continent from the Parachute loft in Nova Scotia to the aerial tram over the Fraser River canyon in the interior of BC.