Exit guides › South Dakota › I-90 › Exit 121

Exit 121 — I-90 in South Dakota

Big Foot Road · Milepost 121 · 4 places at this exit.

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Worth the stop ♥: Minuteman Missile National Historic Site

Things to see · 4

Place	Off the ramp
Minuteman Missile National Historic Site ♥	2.1 mi · national_park
Burns Basin Overlook	8.2 mi · viewpoint
Prairie Wind Overlook	8.2 mi · viewpoint
Prairie Wind Overlook	8.3 mi · viewpoint

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