Porters Flat Campground (Backcountry Campsite 31) is located at 3,400 feet elevation at the end of the moderate Porters Creek Trail in Great Smoky Mountains National Park's Greenbrier section, accessible via a 3.

6-mile hike from the Greenbrier Cove Road trailhead.

The campsite features multiple level tent sites in two separate areas above Porters Creek and serves as a destination for backpackers seeking a scenic, well-maintained camp with access to Fern Branch Falls and wildflower displays along the creek.

Backcountry permits are required ($4 per night, max 3 consecutive nights); the site is popular but can be windy due to surrounding mountains.