Dylife is a former mining settlement in Powys, Wales, located at the head of Afon Twymyn in the Cambrian Mountains, one mile west of the road between Llanidloes and Llanbrynmair (B4518).

Large waterwheels provided the power source, including Rhod Goch (Red Wheel), which, at 63 feet in diameter, was one of the largest in Britain.

Two prominent politicians, Richard Cobden, Williams' son-in-law, and John Bright, were involved in the transfer.

In 1864, the new railway from Aberystwyth to Shrewsbury, with a relatively easily accessible station at Llanbrynmair, provided an easier route to the smelters in north-west England.

[3] From the 1850s, Dylife became a more permanent, settled community with a church, chapels and a school; services were provided by three inns, one of which also had a grocery and butchery, a smithy and a post office.

The company was obliged to house its workers and there were rows of cottages at Rhanc-y-mynydd, towards the western end of the village, and at Bryn Golau.