它并非一道单一的峡谷——在加利福尼亚州北部,矗立在帕罗奥图(PaloAlto)、库比蒂诺(Cupertino)和芒廷维尤(MountainView)周围的山丘并不具有构成峡谷的高度。
It is not a single valley - the hills around Palo Alto , Cupertino and Mountain View in northern California are not high enough to form one .