British Geological Survey
Circa 15,000 sheets. Geological maps of UK at all scales up to 1:10,000, including manuscript maps of Scotland, and all published British Geological Survey maps (1835 to date). Current small scale maps of many other national geological surveys.
West Mains Road, Edinburgh, EH9 3LA
0131 650 0249
Mon-Fri 0900-1630 (Fri 1600)
No copying facilities for non-BGS maps.