The road to Petersville is interesting. Many years ago lots of land were given out in the Alaska land lottery. There are some good views of Denali (in fine weather) but there is a point where the road ends in a ruined bridge. The MILEPOST should have that information. Beyond the ruined bridge is where the land was given away. Hiked in there once and won't do it again.
Have you got Potter Marsh south of Anchorage on your list? It can be very good for birds and other wild life.
Do have a great time!