Why “valleys” is being discussed
The most recent Hacker News stories and comments contributing to this topic's mentions.
Didn't realize google earth's performance had gotten that bad, but yeah, you can clearly see the V shape there. You can see the U shape in the hanging valleys on the higher slop…
by AlotOfReading · Aug 28, 2026
Pro tip for people moving north; don't buy land in the valleys around Mt. Rainier. This type of flood (also known as a lahar) has occurred there many times. The mudflows reached…
by hodgesrm · Aug 28, 2026
Not readily. The events, even with increased frequency, are relatively rare (perhaps a few times a decade), quite sudden, utterly overwhelming, and destructive to virtually ever…
by dredmorbius · Aug 28, 2026
Probably not. Most alpine valleys were carved by glaciers and have a characteristic U-shaped profile. When you get a landslide into a glacial valley, it hits the relatively flat…
by AlotOfReading · Aug 28, 2026
Is it possible to avoid these risks in mountainous areas? How many people are living in valleys downstream from lakes with these risks? If one simply concluded that with current…
by alkonaut · Aug 27, 2026
Not all valleys are equally dangerous. The question is why people build new on known dangerous places. The new is an important word. They do because the future is not priced in…
by srean · Aug 27, 2026
Interest
Proportion of Hacker News items mentioning "valleys" over time.
Mentions
Total number of Hacker News items mentioning "valleys" over time.
A valley is an elongated low area often running between hills or mountains and typically containing a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over a very long period. Some valleys are formed through erosion by glacial ice. These glaciers may remain present in valleys in high mountains or polar areas. Read more on Wikipedia