Essential Features of a Geologic Map

1. Title for the map
2. Short description of how the map was generated, sources of data, the projection of the map..
3. Map scale, often given in both SI and English units, and as a ratio (e.g. 1:24,000).
4. Thumbnail map showing the location of the local site
5. Legend
6. North arrow
7. Author of the map
8. Coordinate frame or grid, giving locational system such as lat/long or UTM coordinates.