It is on the northern bank between Kelmscott and Radcot, about 1 mile (1.6 km) south of the hamlet of Grafton.

The first suggestion for a permanent pound lock was made in 1892, four years before it opened.

[2] The lock can be reached on foot along the river or by road on a turning off Langley Lane which connects to the A4095.

Further upstream the river is crossed by Eaton Footbridge There are moorings at this point reflecting the history of the site which had a weir and flash lock until 1936.

The Thames Path follows the northern bank to Buscot Lock.