Welcome to LOST! Fairly close to you would be some trails up in Manistee NF and you're not too far from Silver Lake Sand Dunes, if you head down this way there's Bundy Hill Off Road Park halfway between Jackson and Toledo. There's three real quick off the top of my head.
"EDIT" Actually I think Jeepfrog and Overclocked are going to be up in Manistee over Memorial weekend May 27-28
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02 Red KJ Sport,33s,
custom fenders,custom roof rack,custom 5" susp, cradle drop,
V8 swap[url=http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=68&t=64049]04 KJ, 4" Fox coilovers, Bilstein, 33's, RL front bumper
'05 WK Limited, Hers