URL：https://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/2013-05-12_11_23_41_Pitch_Pine_trees_and_view_west_from_the_Hoeferlin_Trail_in_Ramapo_Mountain_State_Forest_in_New_Jersey.jpg/1200px-2013-05-12_11_23_41_Pitch_Pine_trees_and_view_west_from_the_Hoeferlin_Trail_in_Ramapo_Mountain_State_Forest_in_New_Jersey.jpg
掲載元：https://zh.wikipedia.org/wiki/刚松
