The calibration files are a package containing six files for each of the Discovery Walking Guides' Digital Maps. Some new maps (with new numbers) are being issued in early October 2009 - make sure you use the calibration file whose name matches the map you have downloaded
Please enter your Email address below and hit 'submit' and you will be sent an Email with the download link. We will store your email but only use it to notify you of any changes in the future.
Please note that whilst these files are free to download they are Copyright Discovery Walking Guides.