These scanned USGS quadrangle maps, georeferenced at various scales, date from the late 1880’s to 2010. For more information on the effort to capture the complete map collection, see the Historical Topo Map Collection web site. For more information, see the guidelines on “A New Way to Find Old Maps“.
An alternative tool to examine historical USGS topographic maps is the Esri USGS Historical Map Viewer. TopoView and the Historical Map Viewer use similar technologies from Esri’s ArcGIS Online and each have advantages. TopoView allows geotiff and other download formats and provides an easier way to select specific maps. The Historical Map Viewer has a time scale across the bottom and its ability to overlay maps of different years make it a useful teaching tool for examining land use change over time. Try them both and we look forward to your comments below.