148 MIDDLEM1SS. GEOLOGY OF HAZARA AND BLACK MOUNTAIN. 



but their higher occurrences are in local patches, and not in a well- 

 defined terrace or bed. Up the Booee N. well-worn river-boulders 

 extend up the hill-side to just beneath the village of Pul, which I 

 estimate is about 1,500 ft. above the present bed of the Koonhar. 

 A well-defined terrace, however, occurs along the Koonhar valley- 

 above Booee, averaging 200 ft, above water-level, and this evidently 

 corresponds to the similar gravels at the Rutwala junction, and near 

 Gurhee-Hubeebooluh. On hill-sides as steep as 40 the slates are in 

 a rapid state of disintegration and decay. Land-slips and scree- 

 surfaces abound. In consequence the gently sloping ridge-crests 

 are the only places where cultivation is attempted and all the villages 

 are situated in such places. 



The Luree stream drains down from Tandi£ni, and is a counter- 

 part of the Booee stream. Its journey down its little steep-sided 

 ravine is a monotonous progress through the slates, with only the 

 intervention of a few thin limestone bands a few feet thick near 

 its junction with the Silole N. The hill-spurs descending towards the 

 Luree stream from Tandiani are just like those near Booee. Some- 

 what broad along their crests, these spurs are visibly contoured by 

 innumerable fields with their banks and retaining walls, and with mi- 

 nute hamlets dotted along their course. The general colour of the 

 slates is grey, and with a bright sheen upon their surfaces. Towards 

 the Silole N. they become slightly more arenaceous. Cleavage dip 

 as before 6o° N.W. ; in many cases it is distinctly across the bedding, 

 but generally it is in the same direction. 



The Silole N. is an extremely deep-cut gorge in its lower part, 

 impossible to cross with pack animals (?>., mules) any great distance 

 below Beerun Gulee, near which it takes its rise. 



On the whole there is scarcely anything of interest to chronicle 

 in this part of the Slate zone. Communication between village and 

 village must be made entirely on foot, save for the apology 

 of a bridle-road along the Koonhar valley. The river-beds in 

 dry weather are the most direct and level routes to follow. Bag- 

 gage animals can be taken along certain lines of country, but the 

 difficulties are very great on account of the disintegrating character 

 ( «48 ) 



