BEACHES OF LAKE WARREN. 765 



feet below the Belmore. The remaining bars or beaches are variable in 

 altitude and in number, as well as in strength, and the causes or conditions 

 which produced them are not at present clearly understood. The lowest 

 or main beach marks a well-defined, long-continued lake level. 



The shore of Lake Warren, like that of Lake Whittlesey, shows marked 

 differential uplift in passing eastward from the Ohio-Pennsylvania line. At 

 the State line the upper ridge stands very near the 700-foot contour, while 

 a lower ridge is shown Ijy the Girard topographic sheet to be 678 feet above 

 tide. The latter is the main beach between Cleveland and the. State line 

 and seems to be the Forest. Its altitude is less than 10 feet higher than at 

 Cleveland though the distance from Cleveland to the State line is nearly 

 70 miles. 



From the Ohio-Pennsylvania line eastward to Westfield, N. Y., a dis- 

 tance of 50 to 55 miles, the first or uppermost ridge rises 42 feet, or to 

 742 feet as determined by Locke level from the railway station, while a 

 second ridge stands 717 feet and a thu'd ridge 705 to 707 feet above tide. 

 At this place the second ridge is much weaker than the first and third 

 ridges, yet its altitude, if compared with the first ridge, supports the view 

 that it is the continuation of the Forest beach or second ridge found at 

 the State line, the interval in each place being not far from 25 feet. The 

 third ridge, though well defined at Westfield, witli a bank 8 to 10 feet in 

 height, seems not to have been developed extensively along the south shore 

 of the lake. 



The beaches continue to rise as far as the vicinity of Silver Creek, 25 

 miles beyond Westfield, but for a few miles from that place the shore bears 

 south of east to Cattaraugus Creek, near Versailles, and the beaches show 

 but little chang'e in altitude. For much of the way between Westfield and 

 Cattaraixgus Creek there are only two ridges. The iipper one reaches the 

 780-foOt contour near Sheridan, and the lower one the 760-foot contour 

 about 3 miles northeast of Sheridan, as shown by the topographic sheets. 



The shore bears away from Lake Erie near Silver Creek, running up 

 the south side of Cattaraugus Creek to Versailles, nearly 10 miles from the 

 lake. It comes back only a short distance on the north side of Cattaraugus 

 Creek. The beat defined beach formed for a few miles north of the creek 

 seems to be a continuation of the lower of the two ridges found west of the 

 creek. It leads northeastward past Brant Center, and near Pontiac to 



