The total elevation difference for Round Lake Trail is 406 feet which is lower than average. Round Lake Trail is 4 miles long it's a mid length walk. Sometimes this hiking trail gets really dry, so make sure you check current conditions and fire restrictions with local forest authorities before you head out. This is not a very long hiking trail but you should still bring some emergency supplies just in case something happens. You should count on this backcountry trek taking about 3.5 hours, but you never know stuff could go wrong and you could get stuck so be prepared for that. This is a one trailhead wilderness hiking trail, so you're looking at an in and out backcountry walk. There's not much difference in elevation along Round Lake Trail, so you get pretty much the same conditions along the whole great outdoors hiking trail.