Directions and info for pickett state park /black house mountain

Hey guys I’m looking to get some more information on how to get to the trails at pickett state forest/ black house mountain trails. I live in middle tn and have been there once before but has been years. I have looked online and can’t seem to find good information on where exactly to go to get to these trails. Also what trails are good to ride and what not. Any info is appreciated. Thanks