Vegetation workshop - Aerial photography interpretation Owens, T. 1990. Vegetation workshop - Aerial photography interpretation. Manual by TGS Technology, Inc., Fort Collins, Colorado, for the U.S. Fish and Wildlife Service, Environmental Management Technical Center, Onalaska, Wisconsin, November 1990. 31 pp. (NTIS #PB94-108958) ABSTRACT This workshop's objective is to give Long Term Resource Monitoring Program field personnel training to use aerial photographs in their everyday work. By the end of the workshop, field personnel will be able to use aerial photos to aid in locating where they are in the field, to help locate field plots and transects on base maps, to be able to identify and map objects and vegetation types on photos and determine photo scale, and to measure objects on photos. KEYWORDS aerial photography, photo interpretation, vegetation mapping