A feature ATLAS is a map or chart that provides detailed information about a particular geographic area. It typically includes features such as roads, rivers, lakes, mountains, and other physical features. In addition, it may also include political boundaries, population data, and other information. The term 'feature ATLAS' is derived from the Greek word 'ATLAS, ' which means 'a collection of maps.' An INSET is a smaller map or chart that is included within a larger map or chart. It is used to provide additional detail or context for the main map or chart.