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Navigating from the Sky: Using GIS for Digital Indexing

ABSTRACT Aerial photos are a unique resource many librarians have not encountered. They resemble regular photographs, but are taken of the earth from the sky, thereby producing an aerial view. Aerial photos can be of great interest to librarians and patrons across many disciplines. This article demonstrates why aerial photos should be considered valuable information sources and describes an indexing project, a prototype system developed at the University of Colorado Map Library. The prototype is the creation of a digital index of aerial photos using a GIS (Geographic Information System), which allows both novice and advanced patrons to search the collection.