Lower Tamar Lake


Lower Tamar Lake is located on the Devon-Cornwall border, in England, near Alfardisworthy.
It was constructed in the 1820s to supply water to the Bude Canal. It is now a nature reserve.
The reservoir has been formed by damming the River Tamar. To the north is the newer Upper Tamar Lake, a reservoir used for public water supply.
The county boundary originally ran along the route of the River Tamar, but was re-aligned along a re-routing of the river to the reservoir's west side, placing the lake in Devon.