Porter Brook

Porter Brook
The Porter Brook at Wilson's Sharrow Mill.
Country	England
Basin features
Main source	Pennines
Physical characteristics
Length	6.5 mi (10.5 km)

The Porter Brook is a river in the City of Sheffield, England descending over 1,000 feet (300 m) from its source among the sedge grass on Burbage moor behind a small farm on Hangram just inside the Peak District National Park in the west of the city at Clough Hollow, near the village of Ringinglow.Coordinates: 53°21′19″N 1°33′56″W / 53.3552°N 1.5655°W / 53.3552; -1.5655 Porter Brook derives its name from its brownish colour, similar to the colour of Porter, a brownish discolouration obtained as it passes over iron-ore deposits on its course from the source.

From here it flows eastward through Porter Clough through Mayfield Valley to the first of the remaining mill dams. Beyond Forge Dam, where the Porter is defined as a main river, the brook makes its way through Endcliffe Park to Hunter's Bar, before running between Ecclesall Road and Sheffield General Cemetery, past the former Wards brewery. The section of the river from Renton Street, near to the location of Sharrow Forge (No. 15), is now built over running through culverts beneath the intersection of London Road and Eyre Street. It re-emerges by Eyre Street after which it flows alongside Mary Street, beneath the bridge on Matilda Street and behind the BBC offices on Shoreham Street, passing beneath Leadmill Road towards the culvert at Cross Turner Street outside Sheffield Station. It meets the subterranean River Sheaf beneath the Station.