Other phallic symbols can be seen on both the Hotdog and Mr Whoopee vans. Known as 'Cock Rock' by game players, this column, when viewed from a certain angle, looks exactly like a male member. #3 - Cock Rock: Although seen in various Western movies, this is one particular stone column that would have made John Wayne blush. YES NOThey both relate to the biographical history of the area, most notably, the tales of a cavalry unit that fell down a hole near Fort Pastor.