Keep in mind that this is a long wilderness trail, so don't forget to pack enough supplies. This hiking trail has only one trailhead, so you're looking at an in and out trek. The total elevation difference for Smith Creek Trail is 2,573 feet which is higher than average. Different parts of Smith Creek Trail are at very different elevations, so keep in mind that you may need to dress differently at different elevations. With its 6.2 miles of walking distance it's a mid length backcountry walk. You should count on this hike taking about 5.5 hours, but you never know stuff could go wrong and you could get stuck so be prepared for that.