"The Swiss Tectonic Arena Sardona in the north-eastern
part of the country covers a mountainous area of 32,850 ha which
features seven peaks that rise above 3,000 m. The area displays an
exceptional example of mountain building through continental collision
and features .excellent geological sections through tectonic
thrust, i.e. the process whereby older, deeper rocks are carried onto
younger, shallower rocks. The site is distinguished by the clear
three-dimensional exposure of the structures and processes that
characterize this phenomenon and has been a key site for the geological
sciences since the 18th century. The Glarus Alps are
glaciated mountains rising dramatically above narrow river valleys and
are the site of the largest post-glacial landslide in the Central Alpine
region." -http://whc.unesco.org
Postcard 1
Another surprise postcard!
Thank you so much Oscar for helping me increase my UNESCO collection from your country! ^-^
Postcard 2
with equally great stamps!
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