The snow was piled higher than the Himalayas; we would need Sherpas to guide us.
A pile of things can be called: mound - an amount of something in a pile heap - a large pile of something, especially an untidy pile stack - a pile of things placed one on top of the othe mountain - a large pile or amount of something pyramid - a pile of things arranged in the shape of a pyramid bank - a long pile of earth, snow, or sand drift - a large pile of snow or sand formed by the wind wad - a thick pile or ball of papers, money, or thin cloth
A hyperbole would be saying something like "There's enough snow here to reach the sky!" to exaggerate the size of the snow pile in a dramatic or humorous way.
The snow was piled higher than the Himalayas; we would need Sherpas to guide us.
snowdrift
The snow was piled higher than the Himalayas; we would need Sherpas to guide us.
the snow howled
The snow was piled higher than the Himalayas; we would need Sherpas to guide us.
Yes, the phrase "just as good as a pile of gold" is a metaphor because it suggests that something is as valuable or desirable as a literal pile of gold, conveying the idea of high worth or importance.
A large pile is called a heap or a mound.
jackhammer or dig
Yes, it is a mixture of snow and dirt, usually soot from traffic exhaust.