The central meridian for zone 11 is 117 longitude. The central meridian for zone 12 is 111 longitude. The UTM coordinate system is the most widely used projection in the mapping industry and consequently is becoming an de facto standard for use with geographic information systems. This is particularly true for regional data in Canada. The State Plane coordinate system is widely used in the United States.
Maps are the traditional method of storing and displaying geographic information.
A map portrays 3 kinds of information about geographic features. Geography has often been described as the study of why what is where . This is where a feature is. This is what the feature is. The relationship of a feature to other features is implied from the location and attributes of all features.