The cache is small and not winter friendly. It lies between the pit and the tailings.
The walk from the parking (see Iron Mt. Trailhead: http://coord.info/GC1V0JW) starts through a blueberry field, then climbs steeply up to a view and then the summit, then down the other side. At the intersection, turn left to descend to the old Iron Mine. There is a pit partially filled with water and several piles of tailings. Take care with children and dogs.