There will be a mountain bike trail maintenance day at Pontiac Lake Recreation Area on Saturday, April 9, 2011. Trail maintenance will include trail bed grading on eroded trail sections and tree trimmming. Participants will meet at the trail head near the beach at 9 AM. Participants need to wear sturdy shoes, work gloves, safety glasses, and carry water to drink. Tree loppers would also be appreciated. Rain day is Sunday April 10. Participants will need to have a daily state park pass or the new license-plate based passport. For further information, please contact Dave Boboltz, 248-666-1531.