Things to see An erupting volcano A glacier An active geyser The Cretaceous/Tertiary - (KT) boundary A river whose discharge is- above bankful stage A limestone cave An open pit mine A subsurface mine An ophiolite An anorthosite complex A slot canyon Varves An exfoliation dome A layered igneous intrusion Coastlines along the leading - and trailing edge of a - tectonic plate A ginkgo tree Living and fossilized - stromatolites A field of glacial erratics A large catastrophic mass - wasting event A sand dune more than 200 - feet high A fjord A caldera A recently formed fault scarp A sizable breccias An actively accreting river - delta A natural bridge A large sinkhole A glacial outwash plain A sea stack A house sized glacial erratic An underground lake or river The Continental Divide Fluorescent and phosphorescent - minerals Petrified trees Lava tubes Booming sands Stalactites/ Stalagmites

Things to do Feel an earthquake Find dinosaur footprints in situ Find a Trilobite Find gold Witness a tsunami Experience a volcanic ash fall Find a meteorite fragment Experience a sandstorm Experience totality Witness a tornado Witness a meteor storm View Saturn and its moons Swim in a hot spring at the foot of a glacier Look up at the Aurora Borealis Be near icebergs View a great naked eye comet Fall in love again Watch a lunar eclipse View a distant galaxy Experience a hurricane Stand under noctilucent clouds Walk through an ancient - Redwood grove Stand under the bottom of a - rainbow Observe the Green Flash Witness a supernova Witness hail 3 inches or - larger falling from the sky