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Exit 23

I-94 Exit 14
I-94 Exit 36
Frontage Road at I-94 (Exit 23)

Frontage Road at I-94 (Exit 23)

Frontage Road at I-94 junction. Turn left for the community of Pompeys Pillar. Turn right for I-94 west to Billings; continue over freeway for I-94 east to Miles City.

I-90 East - Exit 23

I-90 East - Exit 23

I-90 east approaching Exit 23 - Pompeys Pillar. Pompeys Pillar is a sandstone outcrop, that is special because it has a signature of William Clark, from the Lewis and Clark expedition engraved in it. William Clark named Pompeys Pillar after Sacagawea’s infant son Jean Baptiste, whom Clark had nicknamed Pompey.