
What are cannonball concretions? Jutting out from the landscape, these large, round stones don’t appear to properly fit into the badlands. The secret lies in the large butte located nearby.
When mineral rich water seeps down through the porous layers that make up the badlands, it can deposit those minerals in spaces or gaps in the sediments. The minerals act as a kind of glue, holding these sediments together, often forming around a core. As more and more layers are deposited, the concretion builds outward like a pearl, before being exposed by erosion.
Who knows how many concretions are still waiting to be exposed, deep inside the butte?
It is illegal to remove any resource from a national park. Leave any flower, stone, or other object where you find it so that other visitors can enjoy it as well.
It is illegal to carve, paint, or otherwise alter anything in a national park.
When mineral rich water seeps down through the porous layers that make up the badlands, it can deposit those minerals in spaces or gaps in the sediments. The minerals act as a kind of glue, holding these sediments together, often forming around a core. As more and more layers are deposited, the concretion builds outward like a pearl, before being exposed by erosion.
Who knows how many concretions are still waiting to be exposed, deep inside the butte?
It is illegal to remove any resource from a national park. Leave any flower, stone, or other object where you find it so that other visitors can enjoy it as well.
It is illegal to carve, paint, or otherwise alter anything in a national park.
Is there something we missed for this itinerary?
Itineraries across USA

Acadia

Arches National Park

Badlands

Big Bend

Biscayne

Black Canyon Of The Gunnison

Bryce Canyon

Canyonlands

Capitol Reef

Carlsbad Caverns

Channel Islands

Congaree

Crater Lake

Cuyahoga Valley

Death Valley

Dry Tortugas

Everglades

Gateway Arch

Glacier

Grand Canyon

Grand Teton

Great Basin

Great Smoky Mountains

Guadalupe Mountains

Haleakalā

Hawaiʻi Volcanoes

Hot Springs

Indiana Dunes

Isle Royale

Joshua Tree

Kenai Fjords

Kobuk Valley

Lassen Volcanic

Mammoth Cave

Mesa Verde

Mount Rainier

North Cascades

Olympic

Petrified Forest

Pinnacles

Rocky Mountain

Saguaro

Shenandoah

Theodore Roosevelt

Virgin Islands

Voyageurs

White Sands

Wind Cave

Yellowstone

Yosemite

Zion