McGill Library holds a significant collection of maps, atlases, air photos, satellite imagery, and data covering the greater Montreal region, the province of Quebec, Canada, and the rest of the world. The links below provide information about the location of each collection as well as details about how materials can be accessed or requested. McGill Library collects geospatial data primarily for the Montreal region, secondarily for Quebec, Canada, and the United States. Most of the data sets in the Library’s collection are licensed to McGill University, use of these data are restricted to students, faculty, and staff for academic teaching and research purposes. Users are required to fill out a Geospatial Data Request form and sign a Data License Agreement before using the files. For technical assistance using geospatial data, please contact the Geographic Information Centre (GIC). The GIC actively supports the teaching, learning, and research activities of McGill University in the areas of Geographic Information Systems and Remote Sensing. GIS software is required to view or use geospatial data. A list of free data-viewers is provided below. McGill Library does not endorse or provide support for any of these viewers McGill Library has an extensive map collection, with primary emphasis on Montreal, the province of Quebec, Canada, and the United States. The collection also includes international atlases, topographic maps and thematic maps for many of the world’s countries. Rare Books and Special Collections holds most historical maps and atlases, dating from 1556 to 1940. Significant maps in the collection include plates from the atlases of Willem Blaeu, Gerard Mercator, and Abraham Ortelius. The Geographic Information Centre has a collection of nearly 50,000 airphotos. Aerial photo coverage is primarily for Montreal, Quebec and Canada. The Centre’s collection also includes digital orthophotos, DEMs and satellite imagery covering various regions of Canada and the world. Source.