Damflask Reservoir is situated at grid reference SK277907 five miles (eight kilometres) west of the centre of Sheffield in the Loxley valley close to the village of Low Bradfield and within the city's boundaries.

It was completed in 1896 with the dam walls being constructed from local stone, and its original purpose was primarily as a compensation reservoir to ensure a continuous flow of water to the River Loxley downstream.

A £60,000 project was completed by Yorkshire Water at the start of 2015 to allow better access for disabled people to the circular walking route around the reservoir.

[2] This includes widening of access points to allow wheelchair entry, tactile paving and improved information boards.

[3] The Peak District Boundary Walk runs along the south-western edge of the reservoir from Low Bradfield.