Upminster

Upminster is a place in the east London Borough of Havering, England. It is the eastern end of the London Underground system, on the District line which is green. It is also a station on the c2c line, but Oyster cards and travel cards are not valid beyond Upminster. Nearby places include Hornchurch, Upminster Bridge and Cranham.

Saint Laurence Church in Upminster is where William Derham measured the speed of sound.