The northeastern end of the lake is in geographic South Sherbrooke Township, part of the municipality of Tay Valley in Lanark County.

Farry Island is the largest island in Long Lake in Lanark County in eastern Ontario, Canada in the municipality of Tay Valley.

Tay Valley (township)

Bathurst (Now part of Tay Valley)

North Burgess (Now part of Tay Valley)

South Sherbrooke (Now part of Tay Valley)

Tay Valley is a township in eastern Ontario, Canada, on the Tay River in Lanark County.

It was originally known as the township of Bathurst Burgess Sherbrooke, but adopted the name of Tay Valley on July 30, 2002.

Long Lake is a lake in eastern Ontario, Canada in the municipality of Tay Valley in Lanark County.

This river starts at Bobs Lake and leaves the lake, controlled by a weir, near the community of Bolingbroke in geographic South Sherbrooke Township, part of the municipality of Tay Valley.