Geography of Sheffield county, from bituminous (ideal for domestic heating) to "Thick Coal", of a semi-anthracitic quality, appropriate for use in iron-smelting and in engine furnaces. Associated with the Upper Coal Measures were valuable iron ore deposits, occurring in the form of nodules. Large quantities of locally occurring fireclay were also exploited, as well as ganister (a clay used to make refractory furnace linings). The city of Sheffield derives its name from the River Sheaf which Until the 17th century was written as "Scheth" or "Sheath". Sidney Oldall Addy equates the origins of this word with the Old English "shed" (as in "water-shed")
Sheffield & Tinsley Canal into Sheffield city centre, alongside the Five Weirs Walk which follows the River Don upstream into the city centre. The towpath also connects at Meadowhall with a walking route along the river and the canals of the River Don Navigation into Rotherham town centre. The route of the canal features several listed buildings. They include the Terminal Warehouse and Grain Warehouse at Victoria Quays, Bacon Lane Bridge, Cadman Street Bridge and Darnall Canal Aqueduct. The Sheffield & Tinsley Canal featured in the opening scene of the 1997 film "The Full Monty". This clip was part of a Sheffield City Council