I found the English countryside map here! Try this link http://www.megaupload.com/?d=D73ZRRBN
There are two mats I use, the one with the Spitfire is an aerial photo of the light airfield near me here in Geelong, its A0 in size so its huge and the digital data contained in the file was masssive as it was taken from our State digital cadastral air photo database, I used to work for our State Survey Dept. It strained the RAM of the pen plotter where I worked at the time to the max and took ages to print and chewed up a complete set of pens in the process. I had it laminated at a local poster shop for about US$15. I printed it years ago when Crimson Skies first came out.
The other mat with all the trees is a file I downloaded from the WoW yahoo group its by a member there called Lingster. Its a section of English countryside sourced from Google Earth and the cleanup was created by another member as seperate A4 sheets but Lingster stitched it together and uploaded the file as a single sheet, its pretty big too, its slightly smaller than A0 but big enough to cover most of a 6' x 4' tabletop and leave space for cards and coffee mugs. I had that printed and laminated at a local printer and it cost me about AU$50 which is about US$45. It was a lot of money but I think it was well worth it as its just fantastic quality and its a permanent gaming investment.
Wanna try and get a game in on Sunday?