The total elevation difference for this trail is 1,501 feet which is about average. Different parts of this great outdoors trail are at very different elevations which of course means you need to be prepared for different conditions on different parts of the great outdoors trail. This backcountry hike should take you about 1.5 days, so it's a glorious thing if your backpack is big enough to do the job. Grapevine Trail is 10.4 miles long; it's considered a longer trek. This great outdoors trail sometimes gets very dry, so do check for current fire restrictions before you go if you plan to bring a stove or make a camp fire. Grapevine Trail is a one trailhead trail, so in and out is the way to backcountry hike it normally. This is a long great outdoors trail, so do pack enough food to last the whole trip.