Overview Willow Creek Campground is located approximately 61 miles northeast of Boise, Idaho, in a scenic Ponderosa pine forest along State Highway 21. The campground contains 4 sites that can accommodate up to 6 people each. Natural Features: Wildlife and summer wildflowers are abundant. Historic Idaho City is just 16 miles south. The campground is located at the confluence of the Crooked River and Willow Creek. Enjoy fishing for rainbow trout. Recreation: State Highway 21, also known as the Ponderosa Pine Scenic Byway, snakes along Mores Creek to Mores Creek Summit, Gold Fork, and Banner Ridge with breathtaking views of the surrounding mountains and forest. Numerous trail opportunities are in the area, offering hiking, biking, horseback and ATV riding. Check on the Idaho City Motor Vehicle Use Map (MVUM) for open roads and trails for your interests. In winter, the area becomes a playground for backcountry skiers and snowmobilers.