Illhorn
| Illhorn | |
|---|---|
 View from the Illsee (east side) | |
| Highest point | |
| Elevation | 2,717 m (8,914 ft) |
| Prominence | 235 m (771 ft)[1] |
| Coordinates | 46°15′45.9″N 7°36′58.4″E / 46.262750°N 7.616222°E |
| Geography | |
  Illhorn Location in Switzerland | |
| Location | Valais, Switzerland |
| Parent range | Pennine Alps |
The Illhorn is a mountain of the Swiss Pennine Alps, overlooking Chandolin in the canton of Valais. With a height of 2,717 metres above sea level, it is the highest point of the Illgraben valley.
Illgraben debris flows
[edit]The Illgraben catchment extends from the summit of the Illhorn to the Rhone at an elevation of 610m, and experiences debris flows and mud slides several times annually.[2][3] The largest recorded debris flow in the valley occurred in June 1961, and had a volume of several hundred thousand cubic metres. A warning system gives alert signals 5–15 minutes before the arrival of debris flows at channel crossings.[4] The area is a popular hiking spot and these geomorphological processes are visible most years.[5]
References
[edit]- ^ Retrieved from the Swisstopo topographic maps. The key col is the Illpass (2,482 m).
- ^ Berger, C., McArdell, B. W., and Schlunegger, F. (2011), Direct measurement of channel erosion by debris flows, Illgraben, Switzerland, J. Geophys. Res., 116, F01002, doi:10.1029/2010JF001722.
- ^ "(16) Illgraben: Slope Instability Guide". Archived from the original on 2012-02-22. Retrieved 2013-01-30.
- ^ Badoux, A., Graf, C., Rhyner, J. et al. A debris-flow alarm system for the Alpine Illgraben catchment: design and performance. Nat Hazards 49, 517–539 (2009). https://doi.org/10.1007/s11069-008-9303-x
- ^ "Hiking over the Bhutan Bridge to the Illgraben".
External links
[edit]
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