From Dry Creek, Westside Road is closed to motor vehicles but open to hikers and bikes. The gravel road climbs gradually for 3.8 miles to Round Pass, where a wide pullout and bike rack mark the actual trailhead. That road is part of the full walk, not just a way to reach the trail. Biking the approach saves the road miles in both directions, but bikes must stay at Round Pass while you hike. Access to Dry Creek is seasonal too: the first three miles of Westside Road are open to cars in summer; when that stretch is closed, visitors continue from the road entrance on foot or skis. The road beyond Dry Creek passes through an active rockfall and geohazard area. Keep moving and do not linger there.