Strictly speaking, this is not a valley, and most of the high-tech firms are located on flatland. The rectangle abuts San Francisco Bay on one end and circles around a hilly region at the other.
嚴格說來，這個地區並不是一個山谷，大多數的科技公司都在平地上，一邊依傍三藩灣，一邊圍繞丘陵山坡。