<Ul> <Li> Coconino Sandstone (sandstone formed 265 million years ago) nearest the top of the rim </Li> <Li> Toroweap Formation (limestone formed 255 million years ago) </Li> <Li> Kaibab Formation (dolomite formed 250 million years ago) </Li> <Li> Moenkopi Formation (mudstone formed 245 million years ago) nearest the outer foot of the rim </Li> </Ul> <Li> Coconino Sandstone (sandstone formed 265 million years ago) nearest the top of the rim </Li> <Li> Toroweap Formation (limestone formed 255 million years ago) </Li> <Li> Kaibab Formation (dolomite formed 250 million years ago) </Li>

Where is the most famous impact crater on the earth located