Josephine Lake is a beautiful high mountain lake and it is just a short hike from the trail head. The trail is well marked.
This is a very scenic area. Summit Creek parallels the paved part of the Warren Wagon Road, with meadows on both sides of the road at times. There are moose, deer, elk, bear, and wolves along this road.
If you see government employees at the fish counting station (Look for government license plates on vehicles there!) visit with them. Maybe you will be lucky enough to see Chinook Salmon in the creek.