My dad and I have been trying out some new lakes lately. The 2 most recent were Eagle Lake, and Hydes Lake near Young America.
Eagle Lake
http://www.dnr.state.mn.us/lakefind/showreport.html?downum=10012100
Eagle Lake is basically a cereal bowl. Little in the way of structure. Average depth is only 5 feet, with a maximum depth (that we found...) of 12 feet. The rain shortage this summer is likely a contributing factor, but this is probably one of the greenest lakes I've ever seen. The water was
thick with suspended algae. Less than 2" of visibility once your lure hits the water. We did manage several nice LM Bass in the 2lb+ range, and dad had a walleye that was easily in the 3-4lb range toss the hook at the boat. No roughfish were caught on this outing, however the DNR survey does show a population of black bullhead. Supposedly there are decent populations of Musky and Pike in this lake, but I couldn't attest to that.
Hydes Lake
http://www.dnr.state.mn.us/lakefind/showreport.html?downum=10008800
Hydes Lake was pretty much the stereotypical lake, if you asked a 6 year old to draw one. Annoyingly devoid of shore structure, this lake was pretty standard fare as far as farm 'ponds' go. A bit less soupy-green than Eagle Lake, there was still a fair amount of surface/string algae. The resident flock of geese likely contribute to the fertilization of the water. That aside, we had a blast catching keeper sized black crappies and 1lb-2lb LM bass, almost as fast as we could cast out. Given the high levels of algae, it's probably a better lake to 'keep' fish out of in the winter and early spring. We did note several LARGE carp rolling and tailing along the reeds (they weren't interested in eating sadly).