During 1804–1818 several East India Company personnel briefly visited parts of the district. John Sullivan, then the collector of Coimbatore, just south of the Nilgiris, sent two surveyors (W. Keys and C. McMahon) to make a comprehensive study of the hills. They reached the site of Ootacamund, but failed to see the complete plateau. In 1812 they were the first British to make a cursory survey of the Nilgiri plateau and produce a map. A more detailed exploration was done in the 1818 survey by J.C. Whish, N.W. Kindersley and Mohammed Rifash Obaidullah for the Madras Civil Service, who reported back that they had discovered "the existence of a tableland possessing a European climate."