This is a one trailhead great outdoors trail, so you're looking at an in and out trek. McGuire Trail is 9.4 miles long; it's longer than many hiking trails. This area does get very dry sometimes, so make sure you check current conditions and fire restrictions with local forest authorities before you head out. This is a hiking trail that is quite long, so don't forget to pack enough supplies. This great outdoors trail has a total elevation difference of 2,566 feet which is a higher than average number. Some parts of this hiking trail are much higher up than other parts of the hiking trail, and that means that some parts of the hiking trail could be very different from other parts of it. You should count on this trek taking about 8 hours, but of course some people walk a bit slower and some a bit faster.