I am a local, and absolutely love this trail. Once you are able to get off the road and onto the trail there are so many fun twisty areas. It is possible to ride up to Dry Lake Campground and back in just under 2 hours for decent mountain bikers. The scenery is great. The only section that is unable to be ridden up is call The Wall. It is a rocky 18% grade. It gets busy in the summer, but the early and late seasons are very enjoyable. There is no better feeling than having it all to yourself!
here is a short video of Spring Creek Trail: https://www.youtube.com/watch?v=nEOvz4uZ63s