Deer Park Trail has a total elevation difference of 605 feet which is a lower than average number. Deer Park Trail is not that long but you should still bring some emergency supplies just in case something happens. This is a one trailhead backpacking and hiking trail, so in and out is the way to walk it normally. Being 5.2 miles long it's a mid length trek. You should count on this backcountry hike taking about 4.5 hours, but you never know stuff could go wrong and you could get stuck so be prepared for that. There's not much difference in elevation along the backpacking and hiking trail which means the conditions are about the same from start to finish. This area does get very dry sometimes, so do check for current fire restrictions before you go if you plan to bring a stove or make a camp fire.