Map Index

Description

Map Index
Topographic maps produced by Natural Resources Canada conform to the National Topographic System (NTS) of Canada. Indexes are available in three standard scales: 1:1,000,000, 1:250,000 and 1:50,000. The area covered by a given mapsheet is determined by its latitude and longitude. 1:1,000,000 mapsheets are identified by a combination of three numbers (e.g. 098). 1:250,000 mapsheets are identified by a combination of numbers, and letters ranging from A through P (e.g. 098C). Sixteen smaller segments (1 to 16) form blocks used for 1:50,000 mapping (e.g. 098C03).

Originator

1. Canada Open Data

Use Cases

Source(s)

Remarks

1. The most appropriate dataset to use for EGIS would be from WMS web service as it does not require periodic updates.

Process for EGIS integration

WMS Service:

1. WMS Service can be integrated directly into EGIS

SHP File:

1. SHP can be integrated directly into ArcMap and ArcGIS.

TC Smart Maps:

1. Not all GIS applications can consume KML file directly due to its unique data structures such as networklinks, folders, models etc.

2. Please contact Lawrence Chong, Digital Services Directorate for TC Smart Maps KML dataset and format translation.

3. TC Smart Maps KML link: \tc.gc.ca\tcgis\GISData\Google Mashup\MapIndex\MapIndex.kml

Customization:

1. Schema transformation: As required

2. Denormalization: Not required

3. Value coding: Not required

4. Attribute renaming: As required to improve readability

5. Attribute removal: It is highly recommended as some fields are unnecessary, this will also reduce file size and improve performance

6. Geoenrichment: Feature symbolization is recommended to improve visualization

7. Format translation: Not required

8. Language translation: French version available

9. Update frequency: As identified