A feature can be any of the following:

• A geologic feature, such as a fault, formation, or dike
• A GIS feature: a cartographic representation of a real-world object; GIS features are often described by attributes
• A feature is anything that can be uniquely identified; features are often described by data. A feature that fulfils a specific requirement is a resource.

The definition of the term feature therefore depends on the context within which it is used.

Note: GIS features do not always correspond with geologic features because GIS software can be used to represent anthropogenic objects such as buildings, roads, or canals.