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Wallonie

Palsas, pingos, and thufur:

Wallonie

Palsas, pingos, and thufur:

Highlight • Natural Monument

Palsas, pingos, and thufur:

Hiking

4.8

(46)

Gravel riding

5.0

(1)

This Highlight is in a protected area

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Parc naturel des Sources

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Location: Spa, Verviers, Liège, Wallonie, Wallonia, Belgium

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Tips

Bernd 🌲🦌🍄🥾

May 18, 2022

Hiking

Palsas are very similar to pingos in their morphology and formation, but are significantly smaller than pingos, with heights between around 1 and 10 meters and lengths between around 15 …

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Bernd 🌲🦌🍄🥾

September 29, 2023

Hiking

Thufure is the name given to “rounded to oval, vegetation-covered peaks with a core rich in fine material.” (Baumhauer et. al. 2017, p. 122)
They can be seen in the landscape as humps of fine earth with a diameter of 0.5 to 2 meters and a height of 0.5 to 1 meter. Unlike pingos and palsas, their appearance is not tied to permafrost, as they can already form during seasonal frost.
Source: geohilfe.de/physische-geographie/geomorphologie/periglaziale-formung/periglaziale- Formen-eiskeile-pingos-palsas-und-thufure

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Peter 🥾🐾🌲

October 23, 2025

Hiking

Palsas are small, rounded mounds in peat bogs with a core of frozen soil, formed by frost action in permafrost-like conditions. They are typically found in colder climates and in …

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