There is serveral lakes in Ind. holding Muskies. I have fished a few of them. Webster is where I have fished alot. But with the price of gas so high. I have not been there since 2004. In that area there is many other lakes with Muskies. The newest lake I have tried is Lake Bruce, its closer to Logansport about 25 miles.
Here is the Ind. DNR Musky stocking sites area map.
http://www.in.gov/dnr/fishwild/fish/fishing/muskmap.htm
Here is some web sites for Ind musky I have found. Here they are if you want to read there forums and look around for info.
http://www.websterlakemuskyclub.org
http://www.icemansguideservice.com/fishingreports.shtml
http://www.hoosiermuskie.com/