Stanford University Libraries digitized William Smith’s Stratified Map of England, Scotland and Wales from 1815.  It is part of an ongoing project to digitize thier “large map” holdings. Although the main section of the map is split into 15 pieces, when assembled, it measures approximately 8′ x 6′.  The digital version is made up of 253 shots and is the largest item they have digitized so far. A high resolution composite of all parts would yield an image file approximately 12Gb in size.