----------------------------Original message---------------------------- In an effort to save space in the libraries, I've been asked whether we still need our collection of USGS 15 minute topographic maps and DMA 15 minute maps. They are used occasionally. We receive 7.5 minute topos for all states, and other USGS maps at varying scales. Is there something very useful about the 15 minute maps that we would jeopardize by giving them up? (I'll keep the New York 15' maps, at the least.)