Caught 7 bass and 1 walleye on a crank bait in the weeds. landed 5 of them and released all of them. I only fished from 5:00 PM until 7:00PM saw a few perch but no hits.
MOON PHASE (36%)
76° - 80º F
71° - 75° F
You can get to Upper Gresham from Middle Gresham, however, it can be difficult based on the size of your boat. Approximately five years ago I was able to go from Upper to Middle in my 14 foot, 15 hp boat with the motor up and assistance from an oar once or twice. I don't know if the water level or channel dynamics have changed since then.
I'm not sure if you can get to Lower from Middle or not.
I have caught a musky and many largemouth bass while musky fishing on Upper Gresham. With a topo map you should be able to find many spots that peak your interest. I have a friend who's family has a place on Upper and they catch muskies every once in a while too.