Best Lake in Western North Dakota?

I have done the lakes of Minnesota and our amazing mighty Missouri River but this year I am heading out on my first lake adventure in Western North Dakota. I am going to take the puppy on a road trip to Lake Tschida to hang with friends and family, that got me to wondering in your opinion what is the best lake to find yourself at in Western North Dakota? Tell me so I can put it on my summer road trip map and happy weekend to you!