Cluttsville was northwest of Huntsville, north of 72, between Hwy 53 and the Limestone county line.
Here's a link to it's location on GoogleMaps:
http://tinyurl.com/yko85mZoom out to get an idea of where it is in relation to Huntsville. There's nothing left as far as evidence of the town, it's all just residential area now. Who are you looking for specifically? Maybe they're included in one of the Madison County Cemetery books.