Canadian Geoscience Map MXD Readme File for ArcMAPTM users
The ArcMapTM version which the supplied project (MXD) and File Geodatabases were compiled can be found in the Map Information Document accompanying this product. The two geodatabases include one containing the geological datasets (Bedrock or Surficial) and another (CartoElements.gdb) containing the topographic base data sets and elements required for the cartographic representation.
CONTENT AND LAYER ORDERING
The Table of Contents (TOC) consists of three basic Data Frames (more can exist if required for extra surround elements). The main Data Frame (starting with the prefix CGM) contains all the necessary features to render the CGM in ArcMapTM. The two other Data Frames (NTS Reference and Location Map) contain the features used to build the index maps for the map surround. Layers in the Table of Contents are organized by themes (i.e. Group Layer) and the structure has been optimized to facilitate viewing of superimposed datasets. An explanation of each Group Layer is outlined below:

BORDER - Contains border features (e.g. latitude and longitude intervals and annotation, etc.).

ANNOTATION - Contains all annotation associated with the map face (geological and topographic).

CARTOGRAPHIC DATA - Contains all feature classes necessary to cartographically represent features on the map face (geological point features derived from GDB tables, leader lines, etc.).

FIELDWORK - Contains features related to fieldwork data (e.g. Stations).

<GEOLOGY TYPE> POINTS – Contains any number of geological point feature layers.

<GEOLOGY TYPE> LINES - Contains any number of geological line feature layers.

<GEOLOGY TYPE> OVERPRINTS - Contains any number of geological overlay polygon feature layers. 

TOPOBASE <SCALE> - This Subgroup contains the three  main topographic base feature layers (POINTS, LINES and POLYGONS) as well as the UTM Grid lines. The Scale portion of the Group Layer name should be indicated by a “50K” or “250K” value.

<GEOLOGY TYPE> POLYGONS - Contains any number of lithological map unit feature layers.

IMAGERY – Contains any DEM or hillshade imagery to be depicted on the map.

ADVANCED DRAWING MASKS - Contains polygons for masking other features used by the Advanced Drawing Options tool within ArcMap. 

NOTE – Replace the words “<GEOLOGY TYPE>” with either Bedrock, Surficial or Marine. 

NOTE - Any Feature names that are repeated but having the suffix _REP are holding a cartographic representation used for visual clarity on the map face.

NOTE – The groups, subgroups and layers depicted above are a common set. Some or all may appear based on the features within the geodatabase.