1898] Ells — Formations, etc., of Ottawa District. 185 



prevailing Trenton beds which appear near the west side of 

 that stream. 



South and east of Ottawa the Trenton strata are again 

 seen on the Montreal road at Robillard's quarries. They first 

 appear on this road a short distance east of the road from the 

 shore, between lots 24 and 25, where they are in contact with the 

 Utica shales which extend south from Janeville. The contact 

 is also well seen on the road which comes to the Montreal road 

 along the east side of the Catholic cemetery, about two hundred 

 yards north of the latter. These Trenton rocks thence extend 

 eastward in the direction of Navan, overlying the Black River 

 formation which is well exposed in large flat lying ledges along 

 the second road north of the Ottawa in Gloucester, and already 

 referred to. The contact of the Trenton with the Utica in this 

 direction is about thirty chains north of the corner at Navan. 



The Utica shales come in their proper place upon the 

 Trenton in New Edinborough and thence westward they occupy 

 the southern portion of the city past Billing's Bridge, sweeping 

 south, however, near the east end of Dow's swamp but with a 

 basin shaped area extending northward in the depression partly 

 occupied by the pond in the direction of Cedar street. A limited 

 area also occurs to the west of the canal, east of the pond which 

 is apparently faulted in with the Trenton of this area. From 

 the Pond the southern trend of the basin carries the west line 

 of the Utica several hundred yards south of the Hog's Back, 

 and brings it in contact with the Black River about half a mile 

 west of the junction of the railway from New Edinborough with 

 that from the Canadian Pacific station leading to Prescott. 

 The southern edge of the Utica, to the south east of this place, 

 meets the Calciferous by a line of fault which crosses the Rideau 

 about two miles south of the Hog's Back, and this fault can be 

 easily recognized on the Gloucester road about lot 18, range V> 

 of Gloucester. From this place it can be seen at ntervals to 

 the east for some miles. 



