Stydd Brook is a watercourse in Lancashire

Lancashire

Lancashire is a non-metropolitan county of historic origin in the North West of England. It takes its name from the city of Lancaster, and is sometimes known as the County of Lancaster. Although Lancaster is still considered to be the county town, Lancashire County Council is based in Preston...

, England.

Rising on Gannow Fell south west of the Forest of Bowland

Forest of Bowland

The Forest of Bowland, also known as the Bowland Fells, is an area of barren gritstone fells, deep valleys and peat moorland, mostly in north-east Lancashire, England. A small part lies in North Yorkshire, and much of the area was historically part of the West Riding of Yorkshire...

, the river flows southward, meeting the River Ribble

River Ribble

The River Ribble is a river that runs through North Yorkshire and Lancashire, in northern England. The river's drainage basin also includes parts of Greater Manchester around Wigan.-Geography:...

 at Ribchester

Ribchester

Ribchester is a village and civil parish within the Ribble Valley district of Lancashire, England. It lies on the banks of the River Ribble, northwest of Blackburn and east of Preston.The village has a long history with evidence of Bronze Age beginnings...

.

Stydd Brook flows by Black Plantation then between Moor Nook Farm and Davies Gate, before moving through Stydd Wood.

Tributaries

Boyce's Brook rises at the confluence of Cowley Brook (flowing southwards from Longridge Fell

Longridge Fell

Longridge Fell is a fell near the English town of Longridge, Lancashire. It lies within the Forest of Bowland Area of Outstanding Natural Beauty. As its name suggests, it takes the form of a long ridge which rises in a northeasterly direction from the town of Longridge to its summit 4.5 miles distant...

) and Page Brook (draining the Spade Mill Reservoirs near Longridge

Longridge

Longridge is a small town and civil parish in the borough of Ribble Valley in Lancashire, England. It is situated north-east of the city of Preston, at the western end of Longridge Fell, a long ridge above the River Ribble. Its nearest neighbours are Grimsargh and the Roman town of Ribchester , ...

 and flowing east) close to the hamlet

Hamlet

The Tragical History of Hamlet, Prince of Denmark, or more simply Hamlet, is a tragedy by William Shakespeare, believed to have been written between 1599 and 1601...

of Buckley Gate. From there, the brook moves southeast through Buckley Wood before skirting north around Ribchester to meet Stydd Brook under Stone Bridge.

A little further upstream from this confluence, Duddel Brook joins Stydd Brook. Duddel Brook flows south from its source near Lennox Farm on the eastern slopes of Gannow Fell, flowing through Hougher Fall Wood, Over Hey Wood, then Duddel Wood and Little Stydd Wood.