Appendix VI
KEY TO SURVEY MAPS
The Survey of India was set up as the National Survey and Mapping Organization in 1767 under the Ministry of Science and Technology, Government of India, with headquarters at Dehradun. This organization publishes various types of maps.
The maps published by the Survey of India are of two series.
- India and Adjacent Countries (I A C) series
- International Map of the World (I M W) series
A) The I. A. C. series
In this series, the maps are numbered. Each numbered sheet covers 4° in latitude and 4° in longitude. The numbering starts from NW corner 40° Latitude North and 44° Longitude and increases from north to south. Sheets covering sea are not numbered.
The Indian Union is located between 8°-4′ to 37°-6′ north latitude ...
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