East on I-90, past Drexel, Mt. get off at mile post 26.5 to a small intersection/on/off ramp area and take a quick left, then stay straight, over the small bridge. Continue another 3.2 miles and stay straight. Continue another 4.4 miles to a "Y" and stay right. Continue until you run into snow and unload there.
The author's only been there once and did not find many open areas, just some trails and one area a couple miles inward. The local's know more about the area, however.