The Rugged Terrains came out in May/June of 2011. You may be confusing them with the Long Trail or Rugged Trails. BFG was looking for something a little more aggressive than these two, but not as aggressive as the TA/KO's, hence the Rugged Terrains.
2008 Flagstaff 831QBSS
2005 Ford F150 FX4
2005 Ford Excursion Eddie Bauer 6.0l Diesel