The "Index Chart of the Great Trigonometrical Survey of India" is a captivating historical artifact that captures the essence of one of the most ambitious scientific endeavors of the 19th century. Created in 1875 by the Office of the Trigonometrical Survey of India, this map meticulously details the extensive network of trigonometrical stations established across the Indian sub-continent. The Great Trigonometrical Survey, initiated by the East India Company, was a monumental project aimed at mapping the vast and diverse landscapes of India with unparalleled precision. This map stands as a testament to the scientific rigor and dedication of the surveyors who undertook this colossal task over seven decades.
The mapmaker, the Office of the Trigonometrical Survey of India, played a pivotal role in advancing the field of cartography and geodesy. Their work not only involved recording topographical information and land ownership but also included measuring the depths of navigable waters and calculating the heights of the majestic Himalayan summits. The survey's scientific contributions were profound, leading to significant advancements in understanding the Earth's curvature and the heights of some of the world's tallest peaks. This map, therefore, is not just a geographical representation but also a symbol of scientific progress and exploration.
As you explore the map, you'll find a detailed depiction of the Indian sub-continent, including modern-day India, Pakistan, Bangladesh, and parts of surrounding regions. The intricate network of trigonometrical stations is prominently displayed, showcasing the meticulous planning and execution of the survey. The map also highlights significant bodies of water, such as the Bay of Bengal, and the formidable Himalayan mountain range, marked by triangulation points and network lines. These features provide a glimpse into the diverse and complex geography that the surveyors had to navigate and document.
The map also serves as a historical record of the numerous cities and towns that dotted the landscape during the survey period. From bustling metropolises like Mumbai, Delhi, and Kolkata to smaller yet significant towns such as Mysore, Jodhpur, and Ranchi, the map offers a snapshot of the urban centers that played crucial roles in the region's history. Additionally, it includes cities from present-day Bangladesh, Pakistan, and Sri Lanka, reflecting the extensive reach of the survey and the interconnectedness of the sub-continent.
The historical significance of this map extends beyond its geographical details. It represents a period when the British colonial administration sought to exert control and understanding over its vast territories through scientific means. The Great Trigonometrical Survey was not only a tool for governance but also a catalyst for scientific inquiry and discovery. Owning this map is akin to holding a piece of history that encapsulates the spirit of exploration, the pursuit of knowledge, and the intricate beauty of the Indian sub-continent's geography.
Cities and towns on this map
India:
- Mumbai (Bombay)
- Delhi
- Bangalore (Bengaluru)
- Hyderabad
- Ahmedabad
- Chennai (Madras)
- Kolkata (Calcutta)
- Pune
- Jaipur
- Surat
- Kanpur
- Lucknow
- Nagpur
- Patna
- Indore
- Bhopal
- Ludhiana
- Agra
- Vadodara (Baroda)
- Coimbatore
- Kochi (Cochin)
- Visakhapatnam
- Thiruvananthapuram (Trivandrum)
- Madurai
- Jodhpur
- Guwahati
- Chandigarh
- Mysore
- Ranchi
- Raipur
Bangladesh:
Pakistan:
- Karachi
- Lahore
- Faisalabad
- Rawalpindi
- Multan
Sri Lanka:
Notable Features & Landmarks
- Bodies of water:
- Bay of Bengal
- Borders:
- Outlines of the Indian sub-continent and surrounding regions.
- Mountains:
- Himalayan range (indicated by triangulation points and network lines).
Historical and design context
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Name of the map: Index chart of the Great Trigonometrical Survey of India.
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Creation date: 1875.
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Mapmaker/Publisher: Office of the Trigonometrical Survey of India.
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Context about the mapmaker: The Office of the Trigonometrical Survey of India was responsible for conducting the Great Trigonometrical Survey, a monumental effort to map the Indian sub-continent with scientific precision.
- Themes and topics shown on the map:
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Trigonometrical measures: The map shows a complex network of stations used to conduct measurements.
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Topographical information: The survey recorded topographical details, including the heights of the Himalayan summits.
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Land ownership: The survey recorded land-ownership across the region.
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Sounded depths: The survey measured the depths of navigable waters.
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Countries and regions shown on the map:
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Indian sub-continent: Including modern-day India, Pakistan, Bangladesh, and parts of surrounding countries.
- Design or style of the map:
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Scientific precision: The map is designed with a focus on accuracy and detail, reflecting the scientific methods used in the survey.
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Network visualization: The map prominently features the network of trigonometrical stations.
- Historical significance:
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Scientific advances: The survey contributed to scientific advancements, such as calculating the height of the Himalayan summits and improving the measurement of the Earth's curvature.
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Colonial context: The survey was initiated by the East India Company during its rule over India, reflecting the colonial interests in mapping and controlling the territory.
Please double check the images to make sure that a specific town or place is shown on this map. You can also get in touch and ask us to check the map for you.
This map looks great at every size, but I always recommend going for a larger size if you have space. That way you can easily make out all of the details.
This map looks amazing at sizes all the way up to 50in (125cm). If you are looking for a larger map, please get in touch.
Please note: the labels on this map are hard to read if you order a map that is 16in (40cm) or smaller. The map is still very attractive, but if you would like to read the map easily, please buy a larger size.
The model in the listing images is holding the 16x16in (40x40cm) version of this map.
The fifth listing image shows an example of my map personalisation service.
If you’re looking for something slightly different, check out my collection of the best old maps to see if something else catches your eye.
Please contact me to check if a certain location, landmark or feature is shown on this map.
This would make a wonderful birthday, Christmas, Father's Day, work leaving, anniversary or housewarming gift for someone from the areas covered by this map.
This map is available as a giclée print on acid free archival matte paper, or you can buy it framed. The frame is a nice, simple black frame that suits most aesthetics. Please get in touch if you'd like a different frame colour or material. My frames are glazed with super-clear museum-grade acrylic (perspex/acrylite), which is significantly less reflective than glass, safer, and will always arrive in perfect condition.