#1994: oldmaps, glaciers, geodata
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The 'Atlas of the Historical Geography of the United States' by Charles O. Paullin and John K. Wright, first published in 1932, digitized and georeferenced so that the nearly 700 original maps can be viewed on screen
https://dsl.richmond.edu/historicalatlas/ -
The Iceland Glaciers Web Portal publishes measurements and final data on the extent and mass balance of Iceland's glaciers, as well as other information about the glaciers, including numerous historical and general photographs
https://icelandicglaciers.is/ -
geodatadownloader (GDD) is a client application that runs entirely in the browser to download all data contained in a feature layer from an ArcGIS online service with no maximum size limit
https://github.com/mchaynes/geodatadownloader
Raf