Home›1802 establishments in British India›大三角勘察🌐中文EnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsРусскийहिन्दी한국어中文日本語EntityQ1548493· pop 20· linked from 128 articles大三角勘察19th-century survey to measure the Indian subcontinentWikidata factsImage1870 Index Chart to GTS India-1.jpgShow 4 more factsCommons categoryGreat Trigonometrical Surveystart time1802-04-10end time1871-00-00titleThe Great Trigonometrical Survey of IndiaSources (1)wikidata.orgvia Wikidata · CC0Available in 19 languagesEspañolFrançaisDeutsch日本語РусскийPortuguêsItalianoहिन्दीBanglaConnectionsEast India CompanyCompanycontinentEntityMount EverestCategories1802 establishments in British India1871 disestablishments in Asia19th century in British IndiaCartography by countryGeodetic surveysHistorical geography of IndiaSurveying of India