The roads back to the other 4 groups are dirt. Low clearance vehicles not recommended. June 23, 2012 by Matt ThomasThe roads back to the other 4 groups are dirt. Low clearance vehicles not recommended. Hovenweep National Monument About Matt Thomas Matt is an avid writer and explorer, who loves to showcase his home state of Colorado. His favorite place to be is right here in the Centennial State. Previous Post:The roads back to the other 4 groups are dirt. Low clearance vehicles not recommended.