Sylvan Lake State Park and campground is an out-of-the-way, tranquil oasis that offers beautiful scenery, hiking, fishing, and relative solitude without the crowds of Summit County, Rocky Mountain National Park, or some of the other popular state parks. Not hard to get to, Sylvan Lake is just 15 miles from I-80 south of Eagle, Colorado, and it is perfect for a short getaway or a longer stay to explore the area.