Mottram Tunnel
The Mottram Tunnel ( Mottram in Longdendale ) is a tunnel carrying drinking water by gravity from Arnfield Reservoir , Tintwistle , Derbyshire , in the valley of the River Etherow , to Godley , Greater Manchester , in the valley of the River Tame . 
<triplet> Arnfield Reservoir <subj> Tintwistle <obj> located in the administrative territorial entity <triplet> Derbyshire <subj> Greater Manchester <obj> shares border with <triplet> Greater Manchester <subj> Derbyshire <obj> shares border with <triplet> River Tame <subj> Greater Manchester <obj> located in the administrative territorial entity