At parts of the year this area sees very little rain, so donít forget to check for any current fire restrictions before you go. Needle Trail is 9 miles long it's a mid length hike. You spend the whole hike in roughly the same elevation zone, so you get pretty much the same conditions along the whole backcountry hiking trail. The time needed for this walk is roughly 8 hours, but of course some people walk a bit slower and some a bit faster. Now this hiking trail is pretty long, so don't forget to pack enough supplies. Needle Trail has a total elevation difference of 1,203 feet which is an average number. Needle Trail is a one trailhead backcountry trail, so you're looking at an in and out hike.