May 202014
 

This afternoon, my wife and I went for a four and a half mile hike in the Eastern Palisades section of Chattahoochee National Recreation Area, just inside the Perimeter on the northwest side of Atlanta.  During our outing, I got the chance to get “up close and personal” with a variety of critters living there.  I am still reaping the result — two ticks found so far, and counting.  These photos renew my appreciation for the rich diversity of life on Earth, and particularly here in the Atlanta region — even just a short distance from I-285!

The first creature I encountered was a gorgone checkerspot butterfly (Chlosyne gorgone), considered by the Butterflies of Georgia Field Guide to be a “local and uncommon resident”, though abundant in the Midwest.  It frequents open woodlands and stream corridors; I found this one on a trail along the Chattahoochee River.

 

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A bit further down the trail, I noticed a southern golden tortoise beetle (Charidotella sexpunctata sexpunctata).  This is one of three species of tortoise beetles found in the United States.  I am proud to say that I did not disturb him (or her) while taking this photograph, because the beetle’s dome remains a bronze color.  When disturbed, the beetle will display black spots against the bronze.  Tortoise beetles feed on a variety of host plants, including sweet potato.

 

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Nearby, I noticed a large black ant on a leaf, and it noticed me, too.  It opened its jaws wide, holding its ground against my camera lens pointed in its direction.

 

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The riverside trail eventually climbed steeply upward toward a ridge perhaps 100 feet above the water’s edge.  There, I encountered rhododendrons in bloom.  For a change of pace, I photographed the blossoms; only later did I realize that the blooms contained tiny eight-legged pollen mites.

 

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We took a spur trail downhill toward the Chattahoochee River again.  On our way down off the ridge, I noticed this juvenile common snapping turtle (Chelydra serpentina), its shell perhaps an inch and a half across, standing on the trail.  He (or she) was a bit annoyed at my ministrations with the camera, as you can see by his (or her) expressions in these photographs.

 

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Finally, toward the end of our walk, shortly before we headed down off the final ridge to the river’s floodplain again, I stumbled upon a patent leather beetle (Odontotaenius disjunctus) on the path.  After seeing a close-up of this beetle’s mouthparts, I am comforted by the fact that it feeds on rotting wood.  This beetle was perhaps one and a half inches long — nearly the same size as the young snapping turtle!

 

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Apr 042014
 

Yesterday afternoon, my wife and I hiked a few of the trails in the Sope Creek Unit of Chattahoochee National Wildlife Refuge in Marietta.  In addition to encountering numerous wildflowers (both native and otherwise) and bursting buds on many shrubs and trees, we also visited the ruins of the Marietta Paper Company’s milling operation.  Constructed in 1859, the mill produced paper for Confederate currency during the early days of the Civil War.  It was burned by federal troops in 1864, but reconstructed after the war ended.  Finally, it was abandoned in 1902.  The mill machinery is long gone to rust and vandals, but the stone walls are quite impressive, with enormous window spaces providing views of Sope Creek or deeper into the ruins themselves.

Here are a few images from my day.  First, a few images on the path to the mill ruins:  a flowering dogwood; purple violets blooming along Sope Creek; an eastern redbud in flower among the ruins; and maple keys developing on branches overhanging the water.

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Violets

Redbud

Maple Seeds

Next, a few view of the paper mill ruins along the banks of Sope Creek.

Mill Ruins One

Mill Ruins Two

Mill Ruins Three

Mill Ruins Four

Finally, a few more signs of spring, from later in our walk. Yellow violets were blooming in a charming little ravine, where the water splashed over rocks and fiddleheads of ferns unfurled in the shade.

Yellow Violet

Waterfall

Fern Fiddlehead

Fern Shadow

Toward the end of the walk, we passed a pond where a pair of Canada geese were swimming.  On the earthen dam, European immigrants were in bloom:  crimson clover (Trifolium incarnatum; also called carnation clover) and star-of-bethlehem (Ornithogalum umbellatum).  The latter had flower heads so perfect that they looked artificial.  Other names for this beautiful perennial include nap-at-noon, snowdrops, starflower, and dove’s dung.  All parts of the star-of-bethlehem plant contain cardiac glycosides, making them toxic to livestock.  Unfortunately, the star-of-bethlehem is also considered to be invasive in ten US states.  Crimson clover, on the other hand, is an annual  commonly planted as a cover crop for hay, affording excellent forage for cows and sheep.

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Feb 232014
 

A view of the granite outcrop landscape, Chattahoochee Hills, Georgia..

As a resident of Chattahoochee Hills now for nearly five years, the author has grown to appreciate more and more all of the open space that has been preserved as parkland in our community. While he still takes long day trips in search of new trails to hike or wildflowers to photograph, he also enjoys the pleasure of being able to drive only a few minutes from home and set out onto the trail. One such place he has come to treasure is Hutcheson Ferry Park, a 103-acre park on Hutcheson Ferry Rd near the intersection with Hearn Rd. in Chattahoochee Hills. The park will officially open to the public in a ceremony on Saturday, June 18th, 2011.

At a glance, the park seems unimpressive, more of a venue for a concert or fair than a stunning natural area. Much of the main entrance area of the park is mowed, with isolated trees scattered in the lawn. But go off the beaten path a bit — over a berm or beyond a fence, and wonders await.

The park includes a rock outcrop habitat with mosses, lichens, and aged eastern red cedars. It also has an extensive swathe of former pastureland that has an open, almost prairie-like feel to it. While Cochran Mill Park, a larger park with woods and streams a few miles away, has a few outcrop areas of its own, they do not quite achieve the species variety and beauty of the one at Hutcheson Ferry Park. And the hillside meadows of Hutcheson Ferry Park are not like any other spot this author has seen in other parks in the region.

The first treasure lies just over the hill, literally. From the open entrance area, set off across the grass (avoiding the fire ant nests) headed east, go up a short slope, and find a path through the tangled growth to a space where the land opens out, and the ground is nearly bare rock, with a layer of lichens and mosses. If you are particularly fortunate, you will arrive after a rain, when the rock moss that is usually dry and purplish-black has turned emerald green, and the resurrection fern growing on the side of an old red cedar is brilliant green and thriving rather than appearing brown and dead.

For most of the year, tough, the rock outcrop environment is a harsh place. During the summer, daytime air temperatures just above the granite surface can climb to 120 degrees or more, and the only water is a memory of a thunderstorm many weeks previous. Without soil, the thirsty lichens and mosses take what water they can after a rain, make food and grow for a short time, then go dormant again, waiting for another storm.

Life has specialized to survive under such conditions. Take lichens, for example. They are an odd partnership of a fungus and an alga. Algae usually live in water, but the fungi provide them with “space suits” so that they can dry out and still survive. Fungi, on the other hand, usually have to live on rotting vegetation in order to make their food. But as part of the lichen partnership, they have “taken up farming” by recruiting algae to make food for them. Fungi are one of the few life forms able to occupy bare granite. Another plant well-adapted to almost no soil or water is the prickly pear cactus, which can be found scattered about the outcrop.

Although the plants may be tough in the face of climatic extremes, the granite rock outcrops here in Georgia are actually very fragile places. Too many feet tramping across the outcrop can kill lichens and mosses, leaving scars that won’t fully heal for decades. Historically, granite outcrops were treated like waste places; often rubbish would be dumped or even burned on them. Fortunately, the outcrop at Hutcheson Ferry has been left alone for the most part, although one area was quarried many years ago. After the park opens, will we all be able to visit and appreciate this marvelous spot without harming it?

To get to the meadows at the park, your path leads back down the hillside and south along the mowed roadway. Soon, you arrive at a newly constructed fence, evidently planned to keep visitors far away from Palmetto Reservoir until reservoir access arrangements can be made with the City of Palmetto. Until then, the open landscapes will be off limits. Or they will be, that is, once a gate is constructed and a sign put up. Meanwhile….

Beyond the fence, the path leads briefly upward onto a hilltop, and then down the other side, eventually arriving at a stand of pines and sweet gums and, beyond that, the reservoir. The lake water is lovely, but I find greater appreciation in the open space between. On sunny days, you are liable to find dragonflies, damselflies, and grasshoppers on your walk. The various grasses mostly grow in only a thin mantle of soil. In one spot, the rock beneath is exposed at the surface over an area of several feet. This may be why the forest has been taking so long to reclaim areas that are no longer mowed, or mowed only very infrequently. So far, persimmons have been almost the only tree species to occupy former pasture ground. There is also a stand of mature red oaks beside the path, about halfway between the fence and the reservoir. Beneath the oaks is a ground cover of periwinkle, a non-native plant with dark-green, oval leaves and purple flowers that would have been planted there by someone. Although this writer has not been able to find evidence of a building foundation, he is convinced that the oak grove was once the site of someone’s house. It would have been a lovely place to call home.

This article was originally published on June 3, 2011.  Since that time, the path beyond the fence has no longer been maintained. 

Dec 312013
 

After viewing the stone piles along the Gorge Trail at Little Mulberry Park in Gwinnett County, my wife and I continued along the Gorge Trail.  We soon arrived at the banks of a small, swift-flowing stream.  It was that magical time of day photographers call “the golden hour”, and the lighting on the rushing water was stunning.  Enraptured, I took photograph after photograph.  Here, I would like to share a few of them with you.  While I may not have encountered the sacred amid the park’s stone piles, I did meet up with it there, along the stream, during a few golden moments.

 

Golden Hour Stream One

 

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Dec 282013
 

A few days ago, my wife and I ventured out to a park we had never hiked in before: Little Mulberry Park in northeastern Gwinnett County, Georgia. After circling Atlanta (I hadn’t the courage to attempt the downtown route) and driving for a near-eternity through the northeast suburbs, we arrived at last at the 890-acre park. The property offers a wide variety of trails, including a number of paved multi-use routes, plus a few for horses, bicycles, and pedestrians, and a couple limited to hikers only. We had only a couple of hours before sundown, so I proposed taking the Gorge Trail loop, a 2.16-mile route through an upland hardwood and pine forest and along the edge of a gorge. I was particularly intrigued to read that the trail included over 200 stone mounds, possibly prehistoric in origin.

Setting out on the trail, we soon came to this stunning old oak tree. Its abundant lower branches attest to a time when it stood alone in a pasture, perhaps as recently as 50 to 75 years ago.

This oak tree, perhaps 150 years old, once grew in a pasture.  Little Mulberry Park, Gwinnett County, GA.

This oak tree, perhaps 150 years old, once grew in a pasture. It now stands in a mixed hardwood forest in Little Mulberry Park, Gwinnett County, GA.

After going up and down several steep hillslopes, we began seeing stone piles everywhere we looked.  Some of them were just scatterings of amphibolite gneiss (a metamorphic rock that outcrops throughout the park), while others seemed to be intentionally stacked.  Who constructed them, and why were they there?

Stacked stones on the forest floor, Little Mulberry Park, Gwinnett County, GA.

Stacked stones on the forest floor, Little Mulberry Park, Gwinnett County, GA.

A stone pile from an unknown era shows evidence of deliberate stacking.  But with what intent?  Little Mulberry Park, Gwinnett County, GA.

A stone pile in the forest appears deliberately stacked. But for what reason? Little Mulberry Park, Gwinnett County, GA.

We came to an information sign about the stone mounds, offering an explanation for them and urging visitors to treat them with respect.

Information sign regarding the mysterious stone piles, Little Mulberry Park, Gwinnett County. GA.

Information sign regarding the mysterious stone piles, Little Mulberry Park, Gwinnett County. GA.

The text above asserts that “they are almost certainly associated with native american cultures.”  But if archaeologists “have failed to uncover artifacts”, then on what basis was the connection made?  How do we know that the mounds are prehistoric in the first place?  I will explore this mystery further in my next post.  The answers, as far as I can determine them, teach us  as much about human nature as they do about the landscape history of the upper Piedmont of Georgia.