Fernbank Forest: Atlanta's Last Old-Growth Piedmont Forest
Behind a science museum in Druid Hills sits roughly 65 acres of forest that was never logged — one of the very few places left inside the Perimeter where you can see what the Georgia Piedmont looked like before Atlanta existed.
Published July 6, 2026Fernbank Forest sits directly behind the Fernbank Museum of Natural History and the adjacent Fernbank Science Center in Druid Hills, and its defining fact is simple: unlike essentially every other wooded tract in the urban core, this forest was never clear-cut for timber or farming. The land stayed in the hands of a small number of owners who chose not to log it, through a period when nearly all of the surrounding Piedmont forest was cleared for agriculture, then cotton, then subdivisions. What's left is a rare window into pre-settlement forest structure — mature canopy trees, a developed understory, and soil that was never turned by a plow.
What "old-growth" actually looks like here
Old-growth doesn't mean untouched wilderness in the way people sometimes picture it; Fernbank Forest has certainly been affected by its urban surroundings, including invasive species pressure and stormwater runoff from adjacent development. What it does mean is structural: large-diameter oaks, hickories, and beeches with canopy heights and trunk sizes that take well over a century to develop, standing dead trees left in place rather than cleared, and a layered understory that even well-managed younger forests rarely replicate. Walking the boardwalk trail, the difference from a typical 40- or 60-year-old regrowth forest elsewhere in the metro is noticeable even to visitors without a forestry background — the canopy feels higher, the trunks feel wider, and the forest floor feels less uniform.
The trail
A boardwalk and gravel path system loops through the forest, largely elevated in the wetter sections to protect both visitors' shoes and the forest floor itself from compaction. The full loop takes most visitors 45 minutes to an hour at a relaxed pace. Because the museum and science center own and manage the land, access has historically been tied to their hours and occasionally restricted during maintenance or special events, so it's worth checking current access rules before planning a visit rather than assuming it functions like a standard public park.
Comparable urban old-growth in the metro
Fernbank isn't entirely alone — Soapstone Ridge in south DeKalb preserves another old-growth stand, and Lullwater Preserve near Emory, just a short distance away, protects a different kind of mature urban woodland along a creek corridor. Together these three sites represent most of what's left of intact forest structure inside the Perimeter, each shaped by a different quirk of land ownership history that kept the chainsaws and bulldozers away long enough for the forest to mature.
Why it survived
The short version is that Fernbank's owners across multiple generations placed a higher value on keeping the forest intact than on developing or logging it, eventually formalizing that protection through the land's transfer for educational and conservation purposes. That kind of continuity is unusual; most urban forest tracts this size in a growing metro eventually get sold, subdivided, or logged at some point in their history. Fernbank's survival is as much a story about specific decisions by specific landowners as it is about ecology.
Visiting practically
The forest entrance connects to the museum and science center campus off Heaphy Circle and Clifton Road. There's no separate admission fee to walk the forest trail itself in most cases, though this can change with museum programming, so confirming current policy before a visit saves confusion at the gate. Insect repellent is worth bringing in warmer months given the humidity retained under a canopy this dense.
What to look for on a slow walk
Visitors who take the time to slow down notice details that a quick loop misses: the layered bark textures on old beech and oak trunks, standing dead snags left in place as habitat for woodpeckers and cavity-nesting species, and a spring wildflower display along the forest floor that depends on exactly the kind of undisturbed, humus-rich soil this tract has kept intact. Because the canopy has had so long to mature, light reaches the forest floor differently than in a younger stand — dappled and shifting rather than the more uniform shade typical of regrowth forest, which changes what can grow underneath and when it blooms.
Fall brings a modest but genuine color change among the hickories and oaks, and winter's bare canopy is arguably the best season to appreciate the forest's structure — the size and spacing of the mature trees is much easier to take in without a full leaf cover blocking sightlines. Guided walks led by museum naturalists run periodically and are worth checking the schedule for, since they cover details about the forest's history and ecology that self-guided visitors would otherwise miss entirely.