The owners of chief lake are not the greatest people. If been going there for 15 years. Fish the flowage early in the day or late in the day in July. Crappie will be on cribs if you can find the cribs. They have about 1000 new cribs around chief lake.
Beaver huts are good for walleyes late in the day with leechs.
Most of the fish will hang around the weed lines. Weeds grow in eight foot of water, this is the magic depth for the flowage. Look for where the weed line ends in eight foot of water and you will do well.