River Greta (Lune)

Geobox|River
name = River Greta
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state = England | state_type = Part | state_

region = Lancashire | region_type = County
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The River Greta is a river flowing through Lancashire and North Yorkshire in the north of England.

The river is formed by the confluence of the River Twiss and the River Doe at Ingleton.

From Ingleton, the Greta travels westwards through Burton-in-Lonsdale and, over the border in Lancashire, Cantsfield and Wrayton, passing Thurland Castle, where the Greta flows into the River Lune.

The river runs through the Greta valley in Yorkshire. The bottom of the valley is made of slate, and the valley sides are made of carboniferous limestone, and both sides have scars on them. On the right hand side, the scars are called the Raven scars, but on the left, they are called the Twistleton scars. Ingleborough is on top of the Raven scars and is made up of layers of shale and grit stone.