135 



Kilometres ^he ra il wa Y passes along the western side of 



a small lake lying on the northwestern border of 

 the slate belt. Beyond this point the railway 

 enters a belt of the quartzite division and the 

 strata are exposed in many rock cuttings. 



26 -8 m. Mount Uniacke Station. Alt. 509 ft. 



43-1 km. (155km.). After passing a number of rock 

 cuttings in the quartzite, or lower division 

 of the Goldbearing series, the railway runs 

 for some distance along the southern shore of 

 a lake. This lake lies on the contact between 

 the Goldbearing series and a large batholith 

 of granite which extends for 100 miles (160 km.) 

 to the southwest and occupies an area of approxi- 

 mately, 3,000 square miles (7,800 sq. km.). 

 This granite intrusion is of Devonian age. 

 Rock cuts in the granite occur along the railway. 

 A short distance farther, after passing the north- 

 ern end of a lake, the railway traverses for 

 about I mile (0.8 km.) a small area of quartzites 

 entirely surrounded by granite. Beyond this 

 for a distance of i| miles (2.5 km.) the railway 

 passes through an area entirely underlain by 

 granite. In the succeeding 1^ miles, (2.5 km.), 

 the railway follows along the curving northern 

 boundary between the granite and the bordering 

 strata of the Goldbearing series. Finally 

 passing away from the granite region, the rail- 

 way recrosses the height of land (altitude of 

 crossing, 412 ft. (125. 1 m.) and begins to rapid- 

 ly descend along a valley to the more even, 

 lower country visible to the north. The rock 

 cuttings at first are in quartzite while farther 

 on they are in dark slates. The strata of the 

 Goldbearing series occur in regular, parallel 

 folds which are truncated by the granite batho- 

 lith. 



36- 8m. Ellerhouse Station — Alt. 258 ft. (78-6 m.). 



59 -2. Jan. Beyond Ellerhouse the railway traverses a belt 

 of the quartzite, or lower division of the Gold- 

 bearing series. The strata are exposed in a 

 number of rock cuttings and along the walls 

 of the gorge of the St. Croix river where this 

 stream is crossed by the railway. Three 



