Alex McDonald Thundereggs
Not to be confused with the Joe McDonald Ranch, though sadly that is about all I know about this location. They are clearly very similar to the Richardson area geology - especially Pony Butte and others - but they are quite rarely seen.
Alex McDonald Thunderegg with Complex Moss
Simple Alex McDonald Thunderegg
Countries:
USA - Canada - Alaska - Mexico - Argentina - Peru - France - Germany - UK - Poland - Greece - Turkey - Romania - Bulgaria - Slovakia - Kazakhstan - Uzbekistan - Russia - Japan - Ethiopia - Iran - Australia - Unknown