This is the most common Falling Rock Sign in Mongolia. It is shared with many countries
in the region: e.g. Kazachstan, Kyrgyzstan,
Russia, Uzbekistan, but not with China.
Ulaanbataar, 13.VII.2012; pict. N. Heerink
An endemic. No similar sign is found elsewhere and
I can't find any other which seems to be related. Probably tailor-made for this specific spot.
