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Historical aerial photos are important historical records, and subsequently, they have been widely used in many fields to study the physical and human characteristics of a place. Unfortunately, most historical aerial photos remain un-digitized and un-georeferenced on aging photographic film rolls, which significantly limits their usefulness for research and practice. This article is dedicated to discussing a funded initiative focusing on digitizing, georeferencing, creating metadata, indexing, archiving, and web-publishing New Mexico’s historical aerial photos. As part of this initiative, a web application was developed to enable online georeferencing to increase georeferencing productivity, bounding box display to present the ground coverage extent of each historical aerial photo, and spatial search to increase the discoverability and use of historical aerial photos. Based on a set of open standards and open source software and libraries, application programming interfaces for the aforementioned web application were also developed and freely shared with archival and record management organizations across the United States to enable them to develop similar web applications, and ultimately, promoting the access and use of historical aerial photos for various purposes.

New Mexico’s Major Initiative on Digitizing, Archiving, and Web-Publishing Historical Aerial Photos