St. Louis, Missouri
July 7, 2002
The best activity at Mammoth is at Minerva Terrace and at Canary Spring. Both of these must-see attractions are located on the Main Terrace. There are few places where geologic changes occur so quickly since water flows at Mammoth are constantly being redirected.
Coming into the park from the north entrance, this will be the first geological place of interest you'll come to. There is even a museum here in an old fort. Plus there are hotel, cabin, and camping accommodations here as well as the gift shops, restuarants, etc. like in most of the other main tourist areas.
The trails here are quite extensive. You can park below and walk up and around one way, then drive up above and walk around some of the trails up there if you don't have a lot of time. But do spend some time here! The terraces here are not like anything else in the park! Look closely at them as you walk by, many of them have a stream of water running over them constantly---which is how the terraces are created. The areas that are gray, are where the ground is now dry from the water being redirected.
From journal Yellowstone, a Geological Wonder