Definitely Lilium lancifolium. While the flower may superficially look like michiganense, if you had the two plants together, even a novice gardener would see they are completely different. This is L. michiganense:
While it does grow "in the wild" here, L. lancifolium is more of a persistent dweller, as a relic from a previous gardeners of 30-100 years ago. If you find it growing wild, almost assuredly there was a homestead their sometime in the past. The species does not produce seed.
When the debate is lost, slander becomes the tool of the losers. - Socrates
Some additional information: This lily grows "bulbils" in the leaf axils (where the leaf meets the stem). Bulbils are like small bulblets that can be planted to grow a new lily. Some people confuse bulbils with seeds; they are not seeds.
Wow Rick, thanks for the info! This shot was on Grand Marais on an overlook hike. It is interesting to know it must have been a homestead!
Up in the Arrowhead, there are a lot of old, abandoned shacks that have disappeared back into the wilderness with time. If you had looked around, you might have found remnants of where it was.
When the debate is lost, slander becomes the tool of the losers. - Socrates