Puzzle 25 · The Great Plains · Page 43 in print

Badlands

The Badlands erode at an estimated one inch per year, while the granite of the Black Hills to the west erodes one inch every ten thousand years.

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A sign marked Notch Trail alongside a trail proceeding amid badlands buttes under blue sky.

The Notch Trail passes through Badlands rock formations.

NPS Photo / Earl Perez-Foust · Public domain (U.S. federal government work) · Original record
Image changes

Resized and converted to JPEG for display; no subject alteration.

layered badlands buttes reach into a cloudy sky above

Layered Badlands buttes preserve a long geological record.

NPS Photo · Public domain (U.S. federal government work) · Original record
Image changes

Resized and converted to JPEG for display; no subject alteration.

The words

  1. Badlands

    Badlands, the eroded landscape protected by the national park.

    National Park Service (opens a new tab)

  2. Big Pig Dig

    Big Pig Dig, the long-running fossil excavation in the park.

    National Park Service (opens a new tab)

  3. Bighorn

    Bighorn sheep, a species found in the park.

    National Park Service (opens a new tab)

  4. Cedar Pass

    Cedar Pass, the eastern visitor area of the park.

    National Park Service (opens a new tab)

  5. Door Trail

    Door Trail, a hiking trail through the park’s rock formations.

    National Park Service (opens a new tab)

  6. Ferret

    The black-footed ferret, a prairie mammal in the park.

    National Park Service (opens a new tab)

  7. Mako Sica

    Mako sica, the Lakota name meaning bad lands.

    National Park Service (opens a new tab)

  8. Notch Trail

    Notch Trail, the hiking trail known for its log ladder.

    National Park Service (opens a new tab)

  9. Oligocene

    The Oligocene, a geological epoch represented by the park's mammal fossils.

    National Park Service (opens a new tab)

  10. Oreodont

    An oreodont, an extinct mammal preserved in the park's fossil deposits.

    National Park Service (opens a new tab)

  11. Pierre Shale

    Pierre Shale, the marine sedimentary layer in the park's geological record.

    National Park Service (opens a new tab)

  12. Sage Creek

    Sage Creek, the western campground and prairie area.

    National Park Service (opens a new tab)

  13. Swift Fox

    The swift fox, the small prairie fox studied and restored at Badlands.

    National Park Service (opens a new tab)

  14. White River

    White River, the river whose suspended silt gives it its name.

    National Park Service (opens a new tab)

  15. Yellow Mounds

    Yellow Mounds, the yellow geological formations near Dillon Pass.

    National Park Service (opens a new tab)

Sources

  1. Accessible Brochures - Badlands National ParkNational Park Service
  2. Geology & Paleontology - Badlands National ParkNational Park Service
  3. Notch TrailheadNational Park Service
  4. Teacher Background Information: Swift Fox TimelineNational Park Service

How we choose sources and photographs