One tunnel only, fourteen thousand feet in length, was pierced in order to arrive at the great basin.

把铁路铺向辽阔的平原。在整个这一段路上，只钻了一个一万四千英尺长的山洞。

In its place they saw the broad blue surface of a lake, which filled the great basin of the valley from brim to brim.

在那里他们只看到宽阔的蓝色湖面，湖水注满了整个山谷里的盆地。