KP Trail Seventy is a one trailhead hiking and backpacking trail, so in and out is the way to trek it normally. At parts of the year this vicinity sees very little rain, so make sure you check current conditions and fire restrictions with local forest authorities before you head out. Now this hiking and backpacking trail is pretty long, so make sure you bring plenty of supplies. Being 15.2 miles long; it's a long backpacking trail. This hiking and backpacking trail has a total elevation difference of 2,663 feet which is higher than average. Now, this is roughly a 2.5-day backcountry walk, so it's a fine thing if your backpack is big enough to do the job. Different parts of this backpacking trail are at very different elevations, so keep in mind that you may need to dress differently at different elevations.