----------------------------Original message---------------------------- Does anyone know where to obtain or has an index for Antarctica 1:250 000 Satellite Image Maps produced by the USGS. Examples of sheet numbers are ST5-8/10 and SU6-10/7-11. We have an Antarctica index, 1984 by the USGS but these numbers don't show, and the British Antarctica index uses those numbers but doesn't cover all the area mapped. Could you please reply to me directly at [log in to unmask] Thanks in advance for any help, Melissa Leitch Melissa Leitch Assistant Map Librarian Serge A. Sauer Map Library Department of Geography University of Western Ontario London, Ontario N6A 5C2 [log in to unmask] 519-661-3424