Springer Mountain and Three Forks Creek on Appalachian Trail

These next few blog posts will be dedicated to a class I am currently taking at Georgia State University concerning the natural environments of Georgia.  

We hiked the start of the Appalachian trail up to Springer Mountain and then down to Three Forks trail on September 30,2016. From the top of Springer Mountain one can see an example of an Montane Oak forest community and then make their way down the mountain and continue along as the Appalachian Trail changes into an Acidic Cove community.

The AT stretches 2,189 miles from Springer Mountain in Georgia to Mount Katahdin in Main. The trail was proposed by regional planner Benton Mackaye in October of 1921,who originally envisioned the trail as an escape from urban-ism complete with recreational and farming camps that would create jobs as well as promote conservation. He rallied other city planners and officials in support of the trail until the first meeting of the Appalachian Trail Conference of 1925. The decisions of the Appalachian Trail Conference ultimately led for the volunteer based trail system to be protected from development. In 1937 the trail was completed, but World War as well as natural disasters took a toll and and would be hikers and volunteers were sent to war. The first thru-hike was completed in 1948 by Earl Shaffer who aimed to walk the "Army out of is system". Emma Gatewood, a mother of 11 and grandmother to 23, became the first woman to complete a thru-hike in 1955 at the age of 67. The Today, an estimated 2 to 3 million people hike the AT every year, with a few hundred of those completing a "thru-hike". Today the trail is almost entirely protected and managed by the Appalachian Trail Land trust, who continue to monitor the trail from development to keep it a natural and serene refuge, free of commercial developments.

The highlight of this hike was seeing a mighty Eastern Hemlock about half a mile off the Appalachian trail that has still survived in spite of logging in the past and the invasive Hemlock Woolly Adelgid (HWA) of the present.  HWA has devastated millions of hemlock trees since it was first discovered in the USA in the 1950's and continues to spread. Once infected, a tree can die within 2-4 years. Currently, strategies to control the parasitic incest include both insecticides and introduction of the Sasajiscynus tsugae beetle which eats HWA. 

Appalachian Trail Marker at the summit of Springer Mountain.
views from trail marker at summit of Springer Mountain
(Quercus alba) This old growth gnarly white oak at the top of Springer Mountain has been shaped by many years of facing harsh winds and freezing temps which as one can see have snapped off several branches in the past. Many of the old growth oaks at this elevation share these same features which is also why it is thought that they were over looked by loggers in the early century and left to survive.
The same white oak as pictured above, with an "arborglyph"  
hiking up the Springer Mountain trail


  moss and lichen 

red maple leaf (Acer pensylvanicum) is a common tree found in the Montane oak forest community. ferns and goldenrod wildflowers scatter on the forest floor.
an endemic Georgia Aster ( Symphyotrichum georgianum) which was nominated by the Georgia Native Plant Society as the 2015 plant of the year,

classmates passing thru a canopy of rhododendron in the lower elevation Acidic cove forest near Three Forks Creek
Acidic cove forest on Appalachian Trail
The ground is damp and the trees and forest floor are covered with moss and lichen.
Hair cap moss (Polytrichum commune)
 moss and lichens on tree bark
 the base of this hemlock tree
this Galax urceolata covering the ground along a stand of hemlocks is now a protected plant in many places due to illegal harvesting because the evergreen leaves are popular in the floral industry.
A group of mighty hemlocks (Tsuga canadensis) which have died from being infested with Hemlock Woolly Adelgid (HWA)
dead hemlock bark
living hemlock bark.  this is just a close up of a tree we measured that may classify as a new state champion.  the bark is home to a healthy community of moss and lichen and the holes are evidence of woodpecker foraging
Battus philenor
we spotted a Pipe vine swallowtail, on the trail (although I am using an image instead of one that I took from my neighbor's garden) It is a poisonous species whose pattern and colors are mimicked by many, including the black variation of the female Eastern swallowtail butterfly.

Cloudland Canyon

               These next few blog posts will be dedicated to a class I am currently taking at Georgia State University concerning the natural environments of Georgia. 

600 million years ago the area of Coudland Canyon was once covered by a shallow sea full of tiny marine organisms, some of whose remains would be pressed into the limestone bedrock and are still visible today within the exposed rock at sites like Ruby Falls within the Mountain.  Cloudland Canyon lies on the Southern end of Lookout Mountain, which was formed over 250 million years ago during the collision of North American and Africa along with the formation of the Appalachian Mountain range. This collision bent and folded the existing layers of rock, creating cracks that allowed water through to begin the process or erosion that would eventually create the surrounding lower elevation areas such as Cloudland Canyon. So essentially, Cloudland Canyon was formed from erosion, and long ago the surrounding elevation was all much higher.  The Appalachian Mountains used to be a mighty tall range that is still slowing eroding into the sea.  What we see at Cloudland Canyon is the product of that erosion and a forest that was once under the sea, and if current trends of sea level rise continue, it may once again be.

Several ecological communities can be found here, such as Oak-Pine-Hickory forest and pine-oak woodlands.
The Acidic Oak-Pine-Hickory forest community seen here includes tree species such as Southern red oak (Quercus falcata), White oak (Quercus alba), Rock Chestnut oak (Quercus montana), Post oak (Quercus stellata), Scarlet oak (Quercus coccinea), Shortleaf pine (Pinus echinata), Virginia pine (Pinus virginiana), sourwood (Oxydenfrum arboreum), and flowering dogwood (Cornus florida).

The sandy, acidic soils created by sandstone and shale bedrock support acid loving ericaceous shrubs such as mountain laurel (Kalmia latifolia), hillside blueberry (Vaccinium pallidum), sparkle berry (Vaccinium arboreum), fringe-tree (Chionanthus virginicus), and witch-hazel (Hamamelis virginiana) .

The park is also home to Acidic Cliff and Rock Outcrop communities, which support mountain spleenwort (Asplenium montanum), partridge-berry (Mitchella repens), and hairy-southern bush-honeysuckle, which makes me laugh and just to name a few.

"Located on the western edge of Lookout Mountain, Cloudland Canyon is one of the largest and most scenic parks in the state. Home to thousand-foot deep canyons, sandstone cliffs, wild caves, waterfalls, cascading creeks, dense woodland and abundant wildlife, the park offers ample outdoor recreation opportunities. Hiking and mountain biking trails abound. The most popular hiking paths include the short Overlook Trail, strenuous Waterfalls Trail and moderate West Rim Loop Trail. Mountain biking is available at the newly developed Five Points Recreation Area and along the Cloudland Connector Trail. The park also includes an 18-hole disc golf course, wild caves available for touring during select months of the year, a fishing pond, trails for horseback riding, picnicking grounds and numerous interpretive programs, especially on weekends. Guests seeking an overnight experience can choose from fully-equipped and comfortable cottages, quirky yurts or several different types of camping and backpacking options. Come enjoy the great outdoors at Cloudland Canyon State Park."
http://www.gastateparks.org/CloudlandCanyon

On this day of early Fall October 15, 2016, North Georgia has been experiencing a severe drought and none of the waterfalls or spray cliffs in the park had water flow. Signs of drought could also be seen in many of the wilting ericaceous plants.
Virginia pine (Pinus virginia)
wild blueberries (Vaccinium arboreum

dry shrubs and rock outcroppings

Christmas fern (Polystichum acrostichoides)
Drought conditions have severely wilted this rhododendron, which likes a moist and acidic environment.

Calcareous cliff rocks in Cloudland Canyon are high in Calcium and limestone and are easily eroded.

 Rhododendron maximum
( this is a photo of Rosebay rhododendron seen in bloom on an earlier trip to the canyon in mid-summer)
Kalmia latifolia
(Mountain laurel, also seen earlier in the year when it was in bloom early summer)
turkey tails (Trametes versicolor) are a common polypore mushroom found in many parts of the world and has been used medicinally in many cultures as well.
Sassafras sapling (Sassafras albidum), a fragrant tree made locally famous for it's use in brewing root beer
Wild Hydrangea (Hydrangea arborescens)
Autumn leaf butterfly competing with paper wasps for the sap of this tree.
the bright beginnings of the unmistakable and edible Chicken of the Woods fungus, also known as sulphur shelf , (Laetiporous sulphureus)
The white spots seen on this young Hemlock tree are a colony of the Hemlock Woolly Adelgid (HMA), which is an invasive insect imported from Asia that has decimated Georgia's Hemlock populations and continues to spread quickly across the state. 

scenic views from the rim trail show the exposed bedrock cliffs 

Davidson-Arabia Mountain Nature Preserve


These next few blog posts will be dedicated to a class I am currently taking at Georgia State University concerning the natural environments of Georgia. 

Granite outcrop communities have been said to be the crown-jewel of Georgia natural communities because they feature a rare suite of endemic or nearly endemic species, and Georgia has more of these outcrops than any other state. (L.Edwards,The Natural Communities of Gerogia p.303) Mount Arabia is a perfect example of one of these communities, consisting of granitoid rocks known as Lithonia gneiss which is a nomenclature distinct to Mount Arabia.  It is with much awe that I also mention that although Arabia Mountain, Panola Mountain, and Stone Mountain are all granite outcroppings within 20 miles of one another they each are composed of a distinctly different composition of granitoid rock. Mount Arabia is a perfect example of the healthy successional plant community that is adapted to all three of these just mentioned.  The many stages of succession can be observed here, starting from Xanthos and Endolithic lichens and Elf Orpine, and moving all the way up to Virginia Pine trees and Muscadine Vines. Many of these plants are endemic and/or federally endangered, so be careful where you step! If you plan on exploring the mountain in the summer please be aware of ticks, which are abundant here! This is a truly special place that we are lucky to have so close to the city and still largely intact.  
Find out more about the trails and history here:  arabiaalliance.org

Here are some of our field findings from Mount Arabia on September 16th, 2016:
(Photos taken from trails located in Davidson-Arabia Mountain Nature Preserve)
rock moss, (Grimmia laevigata)
The top of the mountain was dry and sunny, as Georgia had been experiencing drought conditions. Pictured here is rock moss, which can appear dark grey or even black when dry but puffs up and turns green when wet.  Here the green colored rock moss has been watered by our teacher with a water bottle.
Ornate Chorus Frog (Pseudacris ornata) found camouflaged in one of the water filled seepage pools on the mountain top.
water-filled seepage pools on the rock outcropping create a temporary wetland habitat of standing water and mineral breakdown
Haircap moss (Polytrichum commune) and Reindeer lichens (Cladonia spp. and Cladina spp.) growing on rock outcrop
After flipping through field guides and looking through several online data-bases, this appears to be 
           Puck's orpine (Sedum pusillum), 
a federally endangered species that is very similar to the famous Elf orpine, but prefers to grow in the shadier borders of the granite outcrop and not in the vernal pools.  It tends to be found under the shade of the Juniper tree or in cracks in the granite, such as pictured here. If can also be green when found in the shade but develops a more reddish color when exposed to full sun. 
Pine weed (Hypericum gentianoides) is well adapted for the harsh environment and full sun of the granite outcrop with it's modified photosynthetic stems.  
The rare and endemic Confederate daisy (Helianthus porteri)
exposed rock that has been cut in early quarry operations 
with only 11 known sites of this species left, federally endangered Elf-orpine (Diamorpha cymosa or Diamorpha smallii) 
seed pod awaits the harsh summer sun before germinating in the Fall
Xanthoparmelia conspersa,
a slow growing lichen seen of a quarried granite slab just off the walking trail. I never tire of getting lost in the patterns of lichens.