2oO BAKERS NORTH YORKSHIRE. 



Lower Calcareous Gritstone down to the Kelloways Sandstone. 

 South of the fault in Gristhorpe cliffs we have a foundation of 

 Lower Oolite, and above it a cliff of Middle Oolite, with the 

 beds from the earliest deposit up to the same Lower Calcareous 

 Gritstone. From this point the beds dip rapidly towards the 

 south, the Calcareous Gritstone descending to the shore-level to 

 form the conspicuous rocky promontory which bears the name 

 of Filey Brig. 



The main stream of Derwent is made up of numerous 

 branches which rise amongst the heathery arenaceous moors a few 

 miles inland from the coast, about midway between Whitby and 

 Scarborough. From the great Peak cliff, the head of its eastern 

 branch is not distant more than two miles. The summit peaks 

 which surround it range in height from about 800 feet on the 

 east side to about 1000 feet on the west of the broad undulated 

 heathery hollow down which the stream flows in a mainly 

 southern direction. The principal dale bears the name of 

 Harwood dale. Opposite Cloughton is the escarpment towards 

 the north of the tabular calcareous range of hills, which attains 

 a height of 633 feet in Suffield Moor and 714 feet in Hackness 

 Moor. This mass of hill is penetrated by numerous digitated 

 glens, with steep wooded embankments. Beneath the western 

 edge of the escarpment of Hackness Moor the stream flows 

 beneath Barns Cliff down sylvan Langdale, its opposite bank 

 guarded by a narrow calcareous ridge, which bears the name of 

 Langdale Rigg. At the bottom of Langdale it receives a con- 

 siderable affluent from the arenaceous moors on the north-west, 

 which runs for several miles at the foot of the calcareous escarp- 

 ment, which from Hackness moor sweeps round towards the 

 west 5 and here also it is joined by two smaller streams from the 

 recesses of the same limestone hill, the glens of which are called 

 Deep Dale and Trouts Dale. With calcareous hills rising steeply 

 above it upon both sides, it flows past the village of Hackness, 

 and down the beautiful thickly-wooded glen called Forge Valley, 

 through the main mass of the calcareous range into the Vale of 



