PHYSICAL AND CLIMATIC SETTING 27 



ter of these high lands is the limitations placed on 

 cropping by the short growing season and the fre- 

 quency of frosts during the spring and, at the higher 

 elevations, even during the summer months. There- 

 fore, this division differs most markedly from other 

 California regions and has closer resemblance to 

 some of the interior states than to the coast and 

 valley areas. In this region there is a modification 

 of temperatures from the north to the south, as it is 

 more open to the influence of north and south lati- 

 tude and is not so fully dominated by local topog- 

 raphy and ocean influences, which give to the re- 

 mainder of the State its unique climatic characters. 



