The Dufour Map is an interactive CD which allows the user to compare the historic Dufour map of 1842-64 with the first modern official map of Switzerland at 1:100,000
HISTORICAL
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Other layers not described also include:Danger points; Sand; Mudflat; Provinces; Prefectures; Counties; 2, 3, and 4 digit postal codes; extraction areas and points, Great Wall of China, dams; islands
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Scanned aerial photos in jpeg, geo-tiff format. Hard copy aerial photos also available.
1965: 1" to 500'
1969: 1" to 1000'
1972: 1" to 1714'
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From http://ccri.library.ualberta.ca/enindex.html: The CCRI represents an infrastructure that facilitates research on the transformation of Canadian society in the twentieth century. The CCRI's mandate is to provide researchers with a body of data… Read more.
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Digital interactive atlas of contains many thematic layers at the national, state and district levels that can be viewed, queried and printed. Includes maps under the following thematic headings:
-India & Neighbours
-States & Districts
-… Read more.
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Interactive digital atlas exploring history of settlements, territories, and the census in South Africa. Includes photographs, scanned maps, detailed accompanying texts, and animations. Shapefiles and spreadsheets containing population data included… Read more.
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Digital atlas of Munich that allows for customized map export, driving directions, and browsing of over 40 georeferenced historic maps.
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Digital historical atlas of Vienna, with zoomable maps and accompanying texts (in German).
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Open geodata portal for Spain. Includes orthophotos, elevation data, land cover, road network files, hydrography, administrative boundaries, populated places, transportation networks and historical maps.