This large, vibrant Prairie Lily was very eye-catching. We saw it at St. Croix State Park, the largest state park in Minnesota. We have been up there a handful of times but never done extensive exploring. Someday, we will go back and climb the fire tower there, which supposedly has a good view.
This is the Common Milkweed Flower. It is a very different color, but you can see how the structure of it is quite similar to the Butterfly Weed flower. They must bloom at rather similar times. I did not get a good whiff of the Butterfly Weed, but this Milkweed from our backyard is rather aromatic and smells great.