Glarus thrust Tomb
Geological thrust fault displaying Alpine overthrust examples
The Glarus thrust is a classic Alpine tectonic fault exposed in the Swiss Alps, studied by geologists; hikers and students visit roadside outcrops and interpretive points in the Canton of Glarus.
Glarus thrust at a Glance#
Website: https://whc.unesco.org/en/list/1176
About Glarus thrust#
The Glarus thrust is a major geological overthrust in eastern Switzerland where older rock units have been pushed over younger formations, forming a classic tectonic contact. The feature is a central element of the Swiss Tectonic Arena Sardona, a UNESCO World Heritage landscape.
Recognition of the overthrust in the 19th century contributed to the development of modern structural geology; subsequent mapping and study established the scale and significance of the tectonic transport in the Alps. Today the region is protected for its scientific and educational value.
The thrust and its classic exposures occur in the Glarus Alps in southeastern Switzerland, visible from the Linth Valley and surrounding mountain routes near the town of Glarus and in the Sardona range.
- UNESCO inscription: Part of the Swiss Tectonic Arena Sardona UNESCO World Heritage site, the thrust provides textbook exposures used in geological education and research.
- Access notes: Visible rock contacts can be reached from marked hiking trails and mountain passes; seasonal conditions and mountain terrain affect accessibility.
What to See#
- Glarus thrust outcrops: Classic outcrops and cliff exposures in the Glarus Alps where older Permian and Mesozoic rocks are juxtaposed by the thrust, providing clear field evidence of large-scale tectonic transport.
- Martinsloch and Sardona range: The Martinsloch and surrounding Sardona range, an iconic part of the tectonic arena noted for its distinct rock formations and scenic mountain routes.
Tips for Visiting Glarus thrust#
- Plan your visit in summer (June-September) when the marked trails and road access across the Tectonic Arena Sardona are most reliable-many routes are snowbound outside those months.
- Base yourself in Glarus or nearby Flims/Elm and pick up the UNESCO Tectonic Arena Sardona maps from local tourist offices; these maps identify the recognized outcrops and the best vantage points for the Glarus thrust.
- Join a guided geological walk or consult the local visitor centres for the interpretive trails: casual passersby frequently miss the specific outcrops and explanatory panels that make the thrust's significance clear.
Best Time to Visit Glarus thrust#
Summer (June-September) is the best time to visit the Glarus thrust area when trails and outcrops are most accessible.
Weather & Climate near Glarus thrust#
Glarus thrust's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -13°C to 7°C. Abundant rainfall (1865 mm/year), wettest in July, distributed fairly evenly throughout the year.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | -12° - -7° | -18° | 154 mm | partly cloudy | 89% | 6.8 m/s | 0.2 low | 8.9h |
| February | Poor | -13° - -7° | -18° | 135 mm | partly cloudy | 90% | 6.4 m/s | 0.3 low | 10.2h |
| March | Poor | -12° - -6° | -17° | 152 mm | partly cloudy | 87% | 6.1 m/s | 0.7 moderate | 11.8h |
| April | Poor | -10° - -5° | -14° | 152 mm | overcast | 80% | 5.5 m/s | 1.0 high | 13.4h |
| May | Poor | -5° - -1° | -8° | 130 mm | overcast | 79% | 4.9 m/s | 1.3 high | 14.8h |
| June | Poor | -2° - 3° | -4° | 167 mm | overcast | 79% | 4.6 m/s | 1.7 very high | 15.6h |
| July | Poor | 1° - 6° | -1° | 191 mm | partly cloudy | 79% | 4.6 m/s | 1.7 very high | 15.2h |
| August | Poor | 1° - 7° | 0° | 176 mm | partly cloudy | 81% | 4.2 m/s | 1.4 high | 14.0h |
| September | Poor | -1° - 4° | -3° | 151 mm | partly cloudy | 83% | 4.9 m/s | 1.0 moderate | 12.4h |
| October | Poor | -4° - 1° | -7° | 136 mm | partly cloudy | 84% | 5.6 m/s | 0.5 low | 10.7h |
| November | Poor | -9° - -4° | -14° | 158 mm | partly cloudy | 87% | 6.5 m/s | 0.2 low | 9.3h |
| December | Poor | -11° - -5° | -16° | 163 mm | partly cloudy | 88% | 6.9 m/s | 0.1 low | 8.5h |
