When the snow first gives way on the upper slopes of their basins, a dull rushing, rumbling sound is heard which rapidly increases and seems to draw nearer with appalling intensity of tone.

当积雪开始在盆地的上坡上消失时，就会听到一种沉闷的隆隆声，这种声音迅速增强，而且似乎以惊人的强度接近了。