16 TOPOGRAPHY OF BLAKENEY POINT. 



area. Most of the shingle of this wasted system of hooks 

 would appear to have drifted alongside the forward edge of the 

 main area, which has, in consequence, been much reinforced in 

 recent years. A further change is the production of an 

 L-shaped terminus to the left-hand Long Hills bank a 

 re-arrangement that took place early in 1911 (Fig. 8). On the 

 sea face there has been some slight widening of the shingle 

 plateau and the production of a channel leading into the large 

 black central area, which consists of sand overlying shingle. 

 This inlet, which is named the Great Sandy Low 

 (Fig. 14), is filled by the higher tides, but the water does not 

 extend into the other lows which are associated with it. 



Having regard to this history of shingle movement of the 

 last twenty-seven years, it is evident that growth in length is, 

 at any rate for the moment, suspended, and that the present 

 tendency is for such shingle as drifts on to the North -West face 

 of the Headland to remain there in the form of apposition 

 banks, with consequent widening of the Headland. 



Turning now to the dunes (dotted), with the North-West 

 extension of the shingle plateau these have undergone an exten- 

 sion in the same sense, throwing out from each end of the Great 

 Sandy Low successive tentacles or parallel series of embryo 

 Psamma dunes, which grow in height and extent as they 

 arrest the sand which blows up from the strand beyond. In 

 connection with this spread of the dunes, very striking is the 

 persistence of the lows left between the successive dune ranges. 

 The Long Low of the 1886 map 6 has persisted without material 

 change to the present time ; while a second one, parallel to this 

 and known as the Glaux Low, has been isolated during the 

 period represented by the series of maps. Further to seaward 

 a third row has come into existence. The entrance of the tide 

 into these lows other than the Great Sandy Low is prevented 

 by embankments of blown sand near their former junctions with 

 the Great Sandy Low. 



As to the Great Sandy Low itself (PI. Fig. 14), at present 

 forming a great plain in the heart of the Beacon Hills, the 



6 The long straight line of black just above the Pelvetia Marsh. 



