We camped at Big Springs campground, outside of Yellowstone (22 miles) this past weekend. This small campground was much nicer than what we experienced at Bridge Bay last weekend. It's convenient to the park, fairly secluded and LOTS of wildlife. We saw four moose, including two bulls. Fish are visible in the springs, but no fishing is allowed. Birds included blue herons, osprey, and various waterfowl. The area is supposed to have a significant population of Great Gray Owls, which we did not see, but I may have heard one nearby in the early morning.