CXX11 



PROCEEDINGS OP THE GEOLOGICAL SOCIETY. [May 1 906, 



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As regards height, 

 the highest pro- 

 nounced hanging 

 valleys are without 

 doubt that occupied 

 by Bleaberry Tarn, 

 which drains by Sour- 

 Milk Gill 1 to the 

 foot of Buttermere, 

 and mouths at 1350 

 feet, over 1000 feet 

 above the lake ; 

 Warnscale at the 

 head of Buttermere, 

 which mouths 900 

 feet above Warnscale 

 Bottom ; and that of 

 Stickle Tarn, 1200 

 feet above Great 

 Langdale. It is true 

 that some of those 

 on the west side of 

 Helvellyn 'mouth* at 

 a greater height, but 

 the mouths are not 

 so well defined. Of 

 others, where the 

 transition from the 

 flat hanging valley to 

 the slope below the 

 mouth is very abrupt, 

 we may notice Giller- 

 combe, which mouths 

 about 600 feet above 

 Seathwaite Beck, and 

 the stream at the 

 Head of Swindale, 

 which, mouthing over 



1 The expressive term Sour-Milk Gill is indicative of a hanging valley. 

 There is another from the hanging valley of Easedale Tarn near Grasmere, 

 and a third from Gillercombe at Seathwaite. 



