Side Mine is a large adit below the paint works in Matlock Bath along Hard rake. It was used as a pumpway in the 1820's and 40's, A large waterwheel at the adit opening powered the pump rods which raised water from 120ft below river level. There are no remains of this system although the adit remains open.
The Side Mine workings were intersected by Riber Mines decline in the 1950's.