Nebraska Petroglyph

It's well worth the twenty minute detour off I-29 near the Missouri-Nebraska border to tour The Indian Cave State Park. The highlight is a striking limestone formation with Native American petroglyphs carved between 1,500 to 1,800 years ago. Unfortunately, they're hard to spot, because more recent travelers have defaced the site. The contrast between the beautiful, ancient works and the contemporary scrawling of crudely scratched names and profanities speaks for itself.