The most radical elevation changes in Florida.<br /><br /><br /><img src="http://ll.broadbandsports.com/images/36320_thumb.jpg" alt="Mountain bike Singletrack - Alafia River State Park" title="Mountain bike Singletrack - Alafia River State Park" width="150" height="90" alt="Mountain bike Singletrack - Alafia River State Park"/>
