Translation of "bergstroom" into English

Na hevige buien of langdurige regens, veranderen zulke beekjes vaak plotseling in gevaarlijke, kolkende bergstromen.

After storms or lengthy rains, such streams are likely to swell suddenly into swift and dangerous torrents.

Er waren inderdaad bergstroompjes, maar die waren vrij klein.

There were mountain streams here, it is true, but none of them was very large.