Walleye, trout, bass and bluegill are the most common fish in Douglas. I believe its about 500 acres and you can use a boat. The problem is that right now the ramp is out of the water and it needs lots of water to make it usuable. If you have something small enough to hand launch you can still get it in.
Here is information from the DOW, State Wildlife Area listing for Douglas.
Elevation: 5000
Acreage: 565
Hunting: None.
Fishing: Trout, small mouth, yellow perch
Recreation:
Facilities: None.
Restrictions: a. Hunting is prohibited.
b. Fires are prohibited.
c. Boating in a manner that creates a white water wake is prohibited.
d. Discharge of firearms or bows is prohibited.
e. Sailboards, sailboats, and ice skating are prohibited.
f. Camping is prohibited.
g. From one hour after sunset until one hour before sunrise, use other than fishing is prohibited.
h. All-terrain type vehicles, dirt bikes and snowmobiles are prohibited.
Comments: Users of wildlife areas are reminded to check current hunting, fishing, and land use regulations when planning to use an area for any purpose.
Dan