As I climbed back into my car with a camera full of more lovely wildflower photos, I smiled at my good luck. Here in Wisconsin and Minnesota, we have quite a variety of habitats and soil types in a relatively small area. I can explore rich soils and maple forests filled with trilliums, wild oats, and large-flowered bellwort one day, then delight in the bedrock home of bird’s eye primrose (and a not-yet-booming mystery plant) the next. And now here I was enjoying prairie flowers in a barrens!  What do we have to thank for these riches? Why the glaciers, of course!