426 Agkici'ltural Manual, 



upward to the lake ridge, 160 feet above the lake, and from five 

 to eight miles south. From this ridge, the surface descends a 

 few feet toward the south and then rises throughout a distance 

 of one to three miles to the summit of the mountain ridge, which 

 rises 310 feet above the lake. South of the mountain ridge the 

 surface is gently rolling. The summits of the ridges along the 

 southern border are about 400 feet above the lake. Baker Hill 

 (928 ft.) in the southern part of Perinton, is the highest point in 

 the county. 



The principal stream is the Genesee River, which has a valley 

 one-half mile to two miles wide, bordered by ridges thirty to 

 sixty feet high. At Rochester the river flows over the solid lime- 

 stone of the mountain ridge, forming the upper Genesee Falls; 

 the lower Genesee Falls occur two and one-half miles further 

 down. The principal tributaries of the Genesee are Allen and 

 Black creeks from the west and Honeoye Creek from the east. 

 The other principal streams of the county are Sandy and Salmon 

 creeks west of the Genesee, and Irondequoit Creek east of that 

 river, all flowing into Lake Ontario. The coast along Lake 

 Ontario is indented by a number of small bays and ponds. 



A large part of the county is covered with glacial drift deposits 

 which generally assume the character of ridges and rounded 

 hills. Tufa and marl are found in several localities. The soil 

 is generally very fertile. Along the lake shore it consists of a 

 red clayey loam derived principally from the disintegration of 

 the Medina sandstone. In the center the soil is mixed with 

 day derived from the disintegration of the Clinton and Niagara 

 >liales. The soil in the southern part is mixed with lime and 

 uvji-um. 



DESCRIPTION BY TOWNSHIPS 



Brighton : The surface is gently rolling, with a slight inclina- 

 tion toward the north. The deep valley of Irondequoit River 

 is on the east border. The streams are small brooks, tributaries 

 of the Genesee and Irondequoit. The soil is a sandy loam in 

 the east and a silty loam on the river. 

 Products: Truck crops and fruit. 



Average values of farm land range from $150 to $350 an 

 acre. 



