Many thanks - some useful stuff there +Rep!
You will find maps for Marengo at items 28 & 29 in "Alison's Atlas of the Wars in Europe 1792-1815" The whole volume can be downloaded from this site: http://archive.org/details/atlastoalisonshi00alis
Also see:
http://www.napoleon-series.org/image...0/marengo1.jpg (08:00 to 10:00 hours)
http://www.napoleon-series.org/image...0/marengo2.jpg (10:00 to 12:00 hours)
http://www.napoleon-series.org/image...0/marengo3.jpg (Desaix's arrival)
http://www.napoleon-series.org/image...0/marengo4.jpg (Nightfall)
Will have to see if I can find decent maps of Maida & Tolentino; it maybe more difficult to find Civita Castellana 1798. Any I do find I will attach to this post & send you a PM.
Edit: Map for Maida from a board game at http://boardgamegeek.com/image/12612...806?size=large
EDIT (7/10/12): Contoured map for Maida attached (sorry quality is not perfect).
EDIT (8/10/12): For Tolentino 1815 see exchange on Napoleon Series Forum http://www.napoleon-series.org/cgi-b...=read;id=89793. May be worth an approach to the writer.