http://www.gorctrails.com/images/maps/castlewood.pdf

The Love trail is called "Mountain Ridge Connector" on this map. It only shows the left option near the top where there's a fork.

The Ranger Station is called "Midway Connector".

Everything else is as I know it. You can see on this map that the Grotpeter and end of the Roller Coaster intersects along with the 3 Bridges trail. When you come off the Roller Coaster you want to stay left for the Grotpeter.