semislug's User Profile - Atlas Obscura
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Rapid City, South Dakota

Thunderhead Underground Falls

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.
Wall, South Dakota

Wall Drug

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.
Whitehall, Montana

Ringing Rocks of Montana

The rocks of a certain area of Butte, Montana give off a musical ring when hit.
Worden, Montana

Pompey's Pillar

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.
Butte, Montana

The Berkeley Pit

New fungal and bacterial species call this deadly lake home.
Afton, Wyoming

Intermittent Spring

A miraculous natural phenomenon known as "the spring that breathes."
Buford, Wyoming

Buford, Wyoming: Population 0

One of the smallest towns in the United States.
Yellowstone National Park, Wyoming

Lone Star Geyser

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.
Buford, Wyoming

Tree in the Rock

Miraculous tree that seems to sprout out of solid rock.
Yellowstone National Park, Wyoming

Isa Lake

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.
Yellowstone National Park, Wyoming

The Crow's Nest at the Old Faithful Inn

An architect's childhood fantasy treehouse made real.
Yellowstone National Park, Wyoming

Old Faithful Geyser

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.
Yellowstone National Park, Wyoming

Grand Prismatic Spring

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.
Yellowstone National Park, Wyoming

Morning Glory Pool

A beautiful geyser under environmental threat.
Devils Tower, Wyoming

Devils Tower

The first declared National Monument in the United States.
West Mineral, Kansas

Big Brutus

The Bucyrus-Erie model 1850B electric shovel, or "Big Brutus," the largest existing electric shovel in the world.
Minneapolis, Kansas

Rock City

A landscape of massive spherical boulders are the main attraction in this Kansas State Park.
Junction City, Kansas

Atomic Annie

A cannon designed to fire an atomic warhead.
Greensburg, Kansas

The Big Well

The United States's largest hand-dug well is topped with a state-of-the-art museum.
Lebanon, Kansas

Geographic Center of the Contiguous United States

Small plaque marks the spot, but the true center is located about half a mile away on a private pig farm.
Oakley, Kansas

Monument Rocks

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.
Brookville, Kansas

Mushroom Rock State Park

Curious rock formations in a tiny Kansas state park.
Cañon City, Colorado

Skyline Drive

This razorback ridgeline has doubled as a scenic drive since the early 1900s.
Stratton, Colorado

419.99 Mile Marker

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.