The Arapeen OHV Trail is a great trail if you like mountain riding. You can request a free Arapeen OHV Trail Map at: UtahATVTrails.org The map is mailed to your home within about a week.
I'd assume these would be width limited trails? Most of us here are after 84"ish wide trails rather than trails limited to 60" or less? Are your maps/area open to all motorized recreation?