Hollingworth Lake was built as the main water source for the Rochdale Canal.
Horse Gin
Horse-driven engine used in lead and shallow coal mines.
Howe Bridge Mines Rescue Station
First mines rescue station on the Lancashire Coalfield, opened in 1908 in Lovers Lane Howe Bridge, Atherton, Lancashire, England.
Howroyd Colliery
Name for a number of day holes and drifts that worked the coal at the outcrop.
Hugh Tremenheere
Career civil servant and inspector of schools, and from 1843 to 1859 the first inspector of mines.
Hulton Collieries
The Hulton Colliery Company operated on the Lancashire Coalfield from the mid-19th century in Over Hulton and Westhoughton, Lancashire.
Huskar Pit Disaster
Deaths of 26 boys and girls working underground, drowned by an overflowing stream.
Imitation game
Redirected to Turing test.
Inspiration (car)
British World Land Speed Record holder for a steam-powered car, set in 2009.
Irwell Valley Fault
Redirected to Pendleton Fault.