I am pleased to say that I have been. It has been a few years but it was a great experience. It makes a long day as it requires parking and walking. I think we walked about 2 1/2 miles each way to view.
We also had the pleasure of viewing from the old railway one year which was a delight as well.
Now the bad news, I think 2009 was the last year that fireworks have been a part of the July 4th celebration at Mount Rushmore. We visit the area almost every year as it is one of my favorite areas, but with the drought conditions and the pine beetles killing off many trees the fire danger is so high that the fireworks have been removed from the celebration.
Please do some research before making plans based on the fireworks, I do not keep up with the news in that area all year but I think the past 3 years have been without the fireworks