A Graphic Swnm^ry of American Agi^iculture . 



61 



Fig. 66. — Noarly half of tho Nation's acreage of plum and pruuf trees i.s in Cali- 

 fornia, and nearly a third is in the five counties of Santa Clara, Sonoma, Placer, Napa, 

 and Solano. One-twelfth more is in Marion, Polk, and Yamhill counties. Orop:. These 

 eight counties produced .51 per cent of the total crop in 1910, and 57 per cent of the 

 commercial crop. A smaller center may be noted in Clarke County, Wash., and a 

 st^-^ttered acreage in the upper Willamette and Umpqua Valleys, Oreg., in the Sacra- 

 mento Valley and in Fresno County, Calif. Prunes constitute nearly tho entire pro- 

 duction in these States. The scattered dots in the eastern half of the United States 

 are practically all plums. 



Pig. 67. — Two-thirds of the Nation's acreage of grapes is in California. The raism 

 district centers around Fresno, where the land is flat and the sunshine almost con- 

 tinuous, while the wine grapes are grown mostly on the slopes ot the valleys that 

 open into San Francisco Bay. These wine grapes are now used largely for raisins. 

 A smaller center may be noted in southern California near San Bernardino. In 

 the East the principalgrape district extends along the southern shore of Lake Krie from 

 Erie to Buffalo. Minor centers may b(- seen in the Finger Lakes district of New \orK, 

 the south shore of Lake Brie in Ohio, and in the southwestern corner of Michigan. 

 These eastern grapes are mostly consumed fresh or made into grape juice. 



