survey of india topo sheets

Types of Topographical Sheets

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Topographical Sheets Topographical sheets or topo sheets are large scale maps of land area of the world. Large scale means that smaller area is shown in detail on a piece of paper. Here, the representative fraction is small e.g. 1:25000. Small scale means that large area is shown on a piece of paper but it … Read more

Survey of India’s Topographical Sheets

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Survey of India’s Topographical Sheets East India Company established Survey of India in 1767 for mapping, survey and exploration of resources in India. It publishes the topographical sheets in two series i.e. open series maps and defense series maps. Open Series Maps Survey of India prepares these sheets on 1:250000, 1:50000 and 1:25000 scale as … Read more