Outside yes, not sure about inside unless it is a service animals.

It is a really isolated place, so I don't think there is anywhere to board your puppy, but the place is fairly small, so you might be able to have someone stay with the puppy while the other is inside

So that you aren't rushing, I would allow at least 4 hours. The museum is relatively small, but packed with so much information you'll want to read, watch, and hear. We weren't able to catch the tour, but if I remember correctly it takes about 1-1/2 hours. This is an amazing part of our history many know little about. It is definitely worth your time.

We had the same issue. I'd call them to dbl check. They have a visitors center which we thought was worth the visit irregardless.

The previous answers to this question no longer accurately reflect how tour tickets are obtained for the Delta-01 Launch Control Center Tour. Please do not plan to wait in line at the visitor center - Since October 2016, all tours of the Delta-01 Launch Control Facility require advanced reservations and an amenity fee. Reservations can be made on-line or by phone at 866-601-5129. The Control Center Tour lasts thirty minutes. The tour begins and ends at the entry gate to the Delta-01 compound. The tour route proceeds with a walk through of the grounds and topside support building before descending in the original elevator 31 feet to enter the underground control center. All tour participants must be able to be physically capable of climbing two 15 foot ladders unassisted in the event of an elevator failure.

Beginning in October 2016, all tours of the Delta-01 Launch Control Facility require advanced reservations and an amenity fee. Reservations can be made on-line or by phone at 866-601-5129. There is no need to arrive early at the visitor center to obtain tour tickets, as they must be obtained in advance. The Control Center Tour lasts thirty minutes. The tour begins and ends at the entry gate to the Delta-01 compound. The tour route proceeds with a walk through of the grounds and topside support building before descending in the original elevator 31 feet to enter the underground control center. All tour participants must be able to be physically capable of climbing two 15 foot ladders unassisted in the event of an elevator failure.

Minuteman Missile National Historic Site is located at three sites along a fifteen mile stretch of Interstate 90 in western South Dakota. The Visitor Center is located immediately north of I-90, exit 131. The two historic sites which make up the park are four miles (Launch Control Facility Delta-01) and 15 miles (Launch Facility Delta-09) from the Visitor Center. To fully experience the park, you should visit all three sites. Beginning in October 2016, all tours of the Delta-01 Launch Control Facility require advanced reservations and an amenity fee. Reservations can be made on-line or by phone at 866-601-5129. The Control Center Tour lasts thirty minutes. The tour begins and ends at the entry gate to the Delta-01 compound. The tour route proceeds with a walk through of the grounds and topside support building before descending in the original elevator 31 feet to enter the underground control center. All tour participants must be able to be physically capable of climbing two 15 foot ladders unassisted in the event of an elevator failure. The Delta-09 missile silo is open from 8:00 a.m. to 3:00 p.m. Mountain Time daily. A self-guided cell phone tour is available at the silo to explain the components found at the site.