RATA VIA MORAINE. 689 



that there is a definite belt of ridges and knolls leading from the Tona- 

 wanda Swamp toward Lockport, which seemed to the writei-, while in the 

 field, to be the more probable continuation of the Batavia moraine. The 

 gap at the Tonawanda Swamp, whicli separates it from that moraine, is 

 less than 2 miles wide, and the ridges on opposite sides of the swamp are 

 about in line with each other, as may be seen by reference to PI. III. It 

 is found, however, that the north or main ridge of the belt west of the 

 swamp is practically continuous with the Barre moraine, whicli leads in 

 from the east along the north side of the drumlin belt. This iiaay not 

 oppose the interpretation that the belt constitutes the continuation of both 

 moraines, but it certainly leaves it open to question. The description of 

 the Batavia moraine will consequently be carried eastward only from 

 Tonawanda Swamp, the portion of the morainic system to the west being 

 described in connection with the Barre moraine. 



The Batavia moraine, as shown in PI. Ill, leads from the southeast 

 border of Tonawanda Swamp southeastward across Alabama Township, 

 Genesee County, passing south of Alabama Center and Smithville and 

 coming to the Corniferous escarpment immediately south of the latter 

 village. On rising to the brow of the Corniferous escarpment it leads 

 toward Batavia and crosses over or becomes combined with the Pembroke, 

 Alden, and Marilla moraines. From Batavia it continues south of east as 

 far as Oatka or Aliens Creek, which it crosses 2 to 4 miles south of Leroy. 

 It then takes a course nearly east to the Genesee River, coming to that 

 stream immediately below (north of) tlie village of Avon. Its farther 

 course was not determined. 



RANGE IX ALTITUDE. 



The TonawiUida Swamp is about 620 feet above tide. The altitude 

 increases gradually from the swamp to the Corniferous escarpment, reaching 

 about 780 feet at the base and 900 feet at the brow of the escarpment south 

 of Smithville. The highest points between Smithville and Batavia are 

 about 960 feet, one being at the geodetic station 4 miles west of Batavia, 

 and others between that place and the city. An altitude of 900 to 950 feet 

 prevails for several miles east from Batavia. The njoraine then begins to 

 descend toward the Genesee River, and is below 600 feet on the border of 

 that stream. 



MON XLI i4 



