The total elevation difference for Cold Spring Trail is 1,738 feet which is about average. With its 9 miles of walking distance it's a mid length hike. Sometimes this wilderness hiking trail gets really dry, so make sure you check current conditions and fire restrictions with local forest authorities before you head out. You should count on this backcountry trek taking about 8 hours, but you never know stuff could go wrong and you could get stuck so be prepared for that. Some parts of this hiking trail are much higher up than other parts of the hiking trail which of course means you need to be prepared for different conditions on different parts of the hiking trail. Now this wilderness hiking trail is pretty long, so make sure you bring plenty of supplies.