Limestone Associations of the Derbyshire Dales 155 



Pig. 5. Chart of associations of the 

 Limestone Formation of Cressbrook 

 Dale and Monaal Dale, Derbyshire. 

 The natural and semi-natural associ- 

 ations are mainly confined to the 

 valley sides. The lower half of the 

 figure is occupied by Monsal Dale 

 which has ». winding course and a 

 mainly southerly direction ; the 

 upper half by the dry tributary valley 

 of Cressbrook Dale, which runs 

 southwards and joins Monsal Dale 

 about the middle of the figure. 



I. Cultivation: (1) of valley 

 bottom alluvium, (2) in- 

 takes from limestone 

 slopes, (3) of plateau. 



II. Limestone grassland on 

 valley sides and extend- 

 ing on to plateau. 



III. Limestone scrub ; on 

 valley sides and extend- 

 ing slightly on to plateau. 



IV. Ashwood : on valley 

 slopes. 



