Decided with the warm weather to give Rock Lake a try. Did some trolling in the south end. Water temp was about 39. Cloudless sky and bright, hardly any wind, water was glassy, probably not the best conditions. Tried a variety of things to try and get some bites, leadcore with spoon, flies, mono with shallow and deeper running plugs. Caught 4 browns over the course of a couple of hours, all on deeper running plugs (ripn minnow) mainly in 30-40 feet of water. Was marking fish either on the bottom or suspended at around 20-40 feet. After that switched over to casting spoons and grubs on a dropoff that goes from about 20-30 to 120 feet. Several bites but only connected with two. All fish caught were browns, small 12-14 inches. Really nice to get on the water, but maybe the weather was just too good today. Full moon probably doesn't help either. Water level is up. Much easier to launch than in November.