South Dakota Campground recommendations, plz?

[Gigi]

As an artist and one that's moving to Watertown, SD, I have been seeking campgrounds in the western part of the state. I like a campground on a lake, if possible, and quiet campgrounds. Shade is nice, electricity not needed, good showers preferred but can be given up if the location is superior.

I have a fantastic county park near me in Minnesota that is a piece of heaven. I only hope to find something like this over in South Dakota.

Suggestions most appreciated!

Thanks!