A Northwest Forest Pass is required for some trails on the Mt. Hood National Forest. These may be purchased at Forest District offices and other local stores. For Zigzag they are available at the Mt. Hood Information Center; not the Ranger Station. Passes are $5.00 per day per vehicle or $30.00 a year. Day Use fees are charged at Clear Lake, Lost Lake and Trillium Lake. Northwest Forest Passes are not required when an area already has a fee.