pink cliffs next to a prairie with text in the sky.
Iŋyaŋ Ocaje (EEN-yawn oh-CHAW-zhay) is Dakota for 'quartzite' or 'bedrock.' (Thank you to Dakota Language Educator Wambdi Wapaha for his translation.)
The outcroppings of pink and red Sioux Quartzite at the monument provide a glimpse of the 4,000+ feet of rock underneath the ground.
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