Military topographic survey mapping with contours. These maps are designed primarily as flying charts for aircraft, but they are useful as general topographical maps where nothing else is available. Contours are shown in feet, with elevation colouring & spot heights. Towns, villages, major roads, railways & airports are shown (but please note that many of the smaller settlements are not named, & the road information is not necessarily up to date). Some air navigation information also appears on the map, such as radio beacons & restricted flying zones. Double-sided sheet.