National Geologic Trail
The first National Geologic Trail was established by the Omnibus Public Land Management Act of 2009.
- Ice Age Floods National Geologic Trail
Read more about this topic: National Trails System
Famous quotes containing the words national and/or trail:
“There is no national science just as there is no national multiplication table; anything that is national is not scientific.”
—Anton Pavlovich Chekhov (1860–1904)
“We sank a foot deep in water and mud at every step, and sometimes up to our knees, and the trail was almost obliterated, being no more than that a musquash leaves in similar places, where he parts the floating sedge. In fact, it probably was a musquash trail in some places.”
—Henry David Thoreau (1817–1862)