This is the place to see Denali. It's a campground/parking lot about 100 miles south of the Park entrance on the way to Anchorage. You can't see the mountain from the Park. You can see the whole range from here.

We went at 6 AM one day (June 30), and the mountain was partially obscured. After going to the park, we went back and stayed in the parking lot. Woke up around 4 AM, and there she was in all her glory. If you're looking to see Denali, trust me and go here.