Modern millpond.


Early 19th century newspapers advertise the sale of land on which a ruined mill was standing 'at the further end of the sand' (meaning the north end of Douglas Bay); included in the sale are 'also the dam and remaining walls of the said mill'.


From this it is clear that the mill was water-powered. The precise site of the millpond is unknown, although it must have been fed from what is now named Summerhill Glen.


Summerhill Glen was later the site of a waterworks operated by Douglas Corporation, and the arrangements for water management present in the glen today reflect this later development.


The grid reference is placed within the lower part of the glen, which appears the most likely and practical location for the dam mentioned in the early 19th century newspapers.