@drfubar, I found the real Royal Blue trails West of I-75. Last 2 times we were really riding the Sundquist Unit which has about 150 miles of trails. The real Royal Blue and New River units have over 400 miles going from Kentucky down to Brimstone then on further down to Windrock at I-40. There was a trailhead 2 miles from my house been driving by it for 2 months you will never know it is there driving faster than 5 mph. We did a 50 mile loop today after 2 pm just got in we were just North of Huntsville then north and east by Jellico, found the hole in the earth landmark then took the roads 7 miles back to the house.