Bigrock

Autor:

Coaxial z angielskiej Wikipedii

Credit:

Na Commons przeniósł z en.wikipedia użytkownik Lukas9950 z pomocą narzędzia CommonsHelper.

Krótki link:

https://plwiki.pl/b/11dab4

źródło:

Wikimedia Commons

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1024 x 683 Pixel (196637 Bytes)

Opis:

Big Rock (glacial erratic). Big Rock (also known as Okotoks Erratic) is a glacial erratic situated between the towns of Okotoks and Black Diamond, Alberta, Canada (18 kilometres south of Calgary). The 15,000 tonne (16,500 short ton) quartzite boulder is one of the world's largest known glacial erratics.

Licencja:

CC BY 3.0

Warunki licencji:

Creative Commons Attribution 3.0