帮忙翻译一下what a vision！什么意思？

Question

In theory, the upward movement offieldstones should result in pure soil, all the stones above the frost linehaving been pushed to the surface and carried away. （不能理解处）What a vision! Acres ofpure, deep soil and crowbars rusting away unused. Alas, the fastest stones moveonly an inch or so a year, and most are orders of magnitude slower.
我个人以为是“多么难以理解”、“奇怪的是”，但，答案是“enthusiasm”
求高人指点一二

Answer 1

我的理解是，这是一感叹句，意为“多么壮观的景象啊！”

Answer 2

是对此vision的感叹，是感叹奇怪还是感叹壮观并未表达，可以翻译成“这景象是多么！”这样半句话～