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Address: 609 U.S. 16 Alternate, Keystone, SD 57751
Phone Number:
+1 605-666-5170
09:00 - 20:00
Open now
See all hours
Sun - Sat 09:00 - 20:00
Recommended length of visit: 1-2 hours

You'll be screamin' Mulligans at Keystone's only 18-hole mini-golf.

The Holy...

You'll be screamin' Mulligans at Keystone's only 18-hole mini-golf.

The Holy Terror Mini Golf course is nestled on the side of a pine-covered slope in Keystone. Named after the last active gold mine in Keystone, the course will have you “screamin’ mulligans” as you putt around gold-flecked boulders, up steep hills, down thru the mine slew, and around the water wheel and bubbling stream. A mini golf experience the whole family will never forget!

Challenging, yet fun! The 18-holes meander more than 50 feet up a steep hillside, and then down again, unified by a gold mining motif and rushing water that flows from a watertank, thru sluices, over a waterwheel and into a millpond. They even have three kinds of artificial turf that simulate fairways, sand traps and rough.

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TripAdvisor Reviewer Highlights

Read all 47 reviews
Visitor rating
  • 7
  • 8
    Very good
  • 16
  • 11
  • 5
Very tough

This is by far the hardest mini golf you will ever play. Some holes are basically impossible. Expect many scores in the teens per hole. Most are straight up hill and if your ball... read more

Reviewed 10 August 2016
Tim S
via mobile

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47 Reviews from our TripAdvisor Community

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Time of year
Showing 47: English reviews
Missoula, Montana
Level Contributor
36 reviews
8 attraction reviews
common_n_attraction_reviews_1bd8 9 helpful votes
Reviewed 16 August 2016

This is probably the most challenging mini gold course I've attempted. I wouldn't necessarily recommend this for families with young children because it takes some time to get through the entire course and each hole gets gradually harder as you work your way up. Nevertheless, this was a great way to kill a couple hours. I'd definitely go back.

Thank MT_FoodieGirl
Winnetka, Illinois
Level Contributor
10 reviews
5 attraction reviews
Reviewed 11 August 2016

It was a convenient location to our activities for the day (Tramway, Mt. Rushmore and Pizza), but as a mini-golf course was really sub par! We hadn't read the reviews beforehand obviously. Agree that there are no level areas to start your putt and many holes that were completely impossible. Our 11 year old was in tears briefly.

Thank jeldring
Level Contributor
21 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 7 helpful votes
Reviewed 10 August 2016 via mobile

This is by far the hardest mini golf you will ever play. Some holes are basically impossible. Expect many scores in the teens per hole. Most are straight up hill and if your ball doesn't go in it rolls all the way back to start. Pretty frustrating. The place is in good shape nothing wrong there but just too hard... More 

Thank Tim S
Des Moines, Iowa, United States
Level Contributor
12 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 12 helpful votes
Reviewed 4 August 2016

I have played a lot of mini golf at a lot of courses all around the U.S. This course was so difficult that our kids quickly lot interest and us adults threw out the score card. Hardly any of it is flat and this includes the tee boxes. 75% of the holes had no level place to start your game.... More 

Thank Ejayz33
Winnipeg, Canada
Level Contributor
4 reviews
common_n_attraction_reviews_1bd8 4 helpful votes
Reviewed 3 August 2016

I took my family of 4 to play one round. Son 7yrs, daughter 11yrs, and wife ??yrs. They all found this course extremely hard. Every hole is on uneven ground. You would hit your ball towards hole and if you don't get a hole in one, your ball would just roll down to the lowest point which would be against... More 

Thank knapastiuk
Level Contributor
31 reviews
19 attraction reviews
common_n_attraction_reviews_1bd8 5 helpful votes
Reviewed 30 July 2016 via mobile

This was a fun yet challenging golf course that is built into the side of a mountain. Several of the holes are impossible to make. With all that said our family had fun playing a round together.

Thank mamabeto
Level Contributor
77 reviews
16 attraction reviews
common_n_attraction_reviews_1bd8 28 helpful votes
Reviewed 25 July 2016 via mobile

Our Mount Rushmore experience was delayed because of fog. Our son saw the mini golf and right away we knew we had a back up plan! There are a lot of stairs but it was really fun. They have a coffee shop at the foot of the mini golf. You can play outdoor chess and there's a tiny little playground.... More 

Thank mercedes88
Papillion, Nebraska, United States
Level Contributor
69 reviews
19 attraction reviews
common_n_attraction_reviews_1bd8 34 helpful votes
Reviewed 19 July 2016 via mobile

Stopped to kill some time , with the family , was clean and well taken care of , didn't take a lot of time to go through either, would recommend this place fun for the whole family and was priced decent too.

Thank papiodad
Des Moines, Iowa
Level Contributor
18 reviews
11 attraction reviews
common_n_attraction_reviews_1bd8 6 helpful votes
Reviewed 8 July 2016

This mini-golf course is built into the side of a hill, making it challenging because the greens are not all flat. You have to climb steps to get beyond the 12th hole, and then come down for the last couple holes. It was clean, well-kept, and nicely landscaped. A bonus was we got to golf for free as guests of... More 

Thank Jill C
Medicine Bow, Wyoming
Level Contributor
59 reviews
27 attraction reviews
common_n_attraction_reviews_1bd8 19 helpful votes
Reviewed 1 July 2016

Did this after dinner one evening. Fun little course set on the side of a mountain. we had 2 seniors, 2 adults, and 1 kid and we had fun, cost about $50.

Thank Wyndi77

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Typical questions asked:
  • Will you pick up and drop off at my hotel?
  • I have a family of 7. Can your tour accommodate all of us together?
  • How should I dress for this tour?