Thumbnails. No border: thumbnail links to a 640 pixel image. Pink border: thumbnail links to bigger image. Blue border: left hand half of thumbnail links to bigger image; right hand half links to image description on the Wikimedia Commons.
Madeira (top) and the Isle of Wight shown on the same scale. (Shameless rip-off from Google maps.) The official maps are the Carta Militar (needs Internet Explorer). See also our visit to Arran another island of comparable size
top is a cross-section through Madeira from west to east.