Garmin oregon 450 complete with full 150k ordnance survey gb map the garmin oregon 450 touchscreen gps has a 3 inch diagonal sunlight readable colour touchscreen display with a rugged design constructed to keep our dust dirt humidity and water for lasting durability this garmin gps features full 150k ordnance survey gb mapping along with point of interest and address searches perfect for use hiking or driving the garmin oregon 450 benefits from the use of a built in 3 axis tilt compe