This is a one trailhead hiking and backpacking trail, so you'll be backpacking it in and back out. Park Creek Trail goes through some very different elevations, and that means that some parts of the wilderness trail could be very different from other parts of it. Keep in mind that this is a long trail, so do pack enough food to last the whole trip. Park Creek Trail has a total elevation difference of 4,110 feet, and that is higher than average. Being 13 miles long; it's a long wilderness trail. This backcountry trek should take you about 2 days, so make sure you've got all your overnight gear packed.