Antique map of Singapore, Keppel Harbour, 1891

The British Admiralty's survey of Singapore's Keppel Harbour, conducted by Commander A. Mostyn Field, R.N. in 1891, was a significant effort to chart and map the waters and coastline of this strategic maritime location. Keppel Harbour, located on the southern coast of Singapore, has been of great importance for maritime trade and naval operations in the region.

Commander A. Mostyn Field, a Royal Navy officer, likely led this survey as part of the British Admiralty's broader efforts to accurately map and chart navigational routes and coastal features in the British Empire's colonies and territories. Such surveys were crucial for safe navigation, trade, and defense.

The information gathered from surveys like the one conducted in 1891 would have been used for producing navigational charts and maps that could guide ships safely through the waters of Keppel Harbour. These surveys also helped in the planning and development of port facilities and naval infrastructure in the area.

Keppel Harbour has historically been a key port for Singapore, and its importance has only grown over the years. It remains a vital hub for shipping, trade, and maritime activities in Southeast Asia.