Marlow Lock is a lock and weir situated on the River Thames in the town of Marlow, Buckinghamshire, England, about 300m downstream of Marlow Bridge. The first pound lock was built by the Thames Navigation Commission in 1773.
The weir stretches a long way upstream above the lock.
Wikipedia https://en.wikipedia.org/wiki/Marlow_Lock
Coordinates 51°34'2.11" N -0°46'7.675" E
