Lonetree has channel cats, walleyes and wipers...I have caught walleyes and wipers there...not in great numbers...the biggest wiper was only about five pounds...have seen larger there...the division of wildlife touts it as being full of fish...but it can a bit of a puzzle...I think the problem is it is full of shad...they are fed well...the fish finder is full of fish...it is a bowl shaped reservoir and they probably cruise looking for food...but they probably dont have to look very far...I dont know the life cycle of shad...dont they die off periodically before the new crop hatches?...if I knew about that I would probably increase my success...early on I would probably try shad cut bait or a big shad crankbait...one thing that Doc Johnson did stress at the walleye seminar the other nite was matching the hatch in terms of crankbaits...especially size...this time of the year the only baitfish is mature..ie holdovers from last year so they are adults...it will be a few weeks before they spawn and the little ones are prevelent and then you switch to smaller cranks...but Lonetree is full of fish...
i have fished lonetree a couple of times myself, not much luck though.
I have a friend who fishes it alot he says there are big fish there but to catch.
Zman is right there is a lot on natural bait there can feed on.
I was up there once this year, three weeks ago. It was slow. We caught one 20 inch walleye, pretty fat though. Everyone is right its a tough lake to fish probably because of all the food. I like it because there are some big fish there. I think your chances of catching something large are better then many other Denver area lakes.
Here is an eye from a couple years, this guy was in the shallows and hit a jig/pig while fishing for largemouth. This is my freind( aka 8inchtubejig) who caught the fish. We have also caught some wiper out of there on minnows. I have been skunked many times at this lake. Tough lake.
Lonetree was our most dependable lake all last year, caught a ton of eyes, but nothing larger than 17inches. Got one real nice wiper, that went 23in. Being wakeless is also a pretty nice feature. Fished it once so far a couple of Fridays ago, with no luck. a cold front just came in, but it was nice to get the boat out for the 1st time. Water level is extremly high, going to have to take some time to search out the fish.
I usually fish it starting on my B-day.. Last year it snowed in the middle of may. My biggest walleye to date came from the lake, I caught it on a white Senko in about a foor of water tucked tightly into the brush. 26".. I didnt have a scale on me, It is still swimming in there somewhere if somebody didnt get it last year.. I'll be out there again this May 19th.