Network of trails offering serious climbs and very technical singletrack.
Take Rt 133 from Brookfield towards Bridgewater. After crossing over the Housitonic River, take the first left onto Northrup Rd. And then take the first left onto Iron Ore Hill Rd. Halfway down the fill you will see the trail head and parking on your left and right.
http://www.singletracks.com/item.php?c=1&i=2039