Dec 292013
 
Partially stacked stone pile, Little Mulberry Park, 26 December 2013

Partially stacked stone pile, Little Mulberry Park, 26 Dec. 2013

Returning home from my visit to Little Mulberry Park in Gwinnett County, I set to work finding out what I could online about the origin and purpose of the mysterious stone piles I had seen.  Were they “almost certainly associated with native american cultures” as the information sign in the park indicated?  If so, how old were they, and what evidence has been found linking them to prehistory?  The more research I did, the more convinced I became that “almost certainly” is, almost certainly, not an accurate phrase to use.  Indeed, the Little Mulberry Park Master Plan drafted in 2001 did not offer a definitive explanation for the piles, instead noting that “the stacked stone mounds have been variously attributed to pre-Columbian habitation by Native Americans and to post-settlement agriculture….”  Based upon this uncertainty, the master plan added, “it is intended that appropriate interpretive signage will be placed to present the various theories about the mounds” [emphasis added].  Various theories?  What do we truly know about these stone piles, and what is conjecture?  Where is the evidence?

Clearly, I thought, there must be some fairly strong evidence leading archaeologists to conclude that the mounds are prehistoric.  In 1989, the site (officially termed the Parks-Strickland Archaeological Complex) was added to the National Register of Historic Places, where it is listed as a prehistoric site dating from between 499 BC and 499 AD.  According to the National Recreation Trails website (hosted by AmericanTrails.org),  the site’s “pre-historic stone mounds” date to the Middle Woodland period of Native American prehistory, between 100 BC and 500 AD.  Furthermore, “Portions of the stone mounds appear to be patterned to represent a stylized serpent figure which demonstrates careful and consistent techniques of early construction.”  It should be noted that this was the only source I could find that claimed some pattern or structure to any of the mounds, beyond observations that many of the mounds show signs of rock stacking and some are roughly cylindrical in shape.

What evidence is there for ascribing a Late Woodland age to the stone structures, and what do archaeologists think they were intended to be?  It turns out that the mounds were first investigated by Atlanta archaeologist Patrick Garrow, and he is responsible both for raising awareness of the potential cultural significance of the stone piles, and for proposing and strongly advocating that they are pre-settlement in origin.  According to a May 1990 article in the Free-Lance Star, a Fredericksburg, Virginia newspaper, Garrow found over 200 rock mounds, and is quoted in the article as speculating that “I think it was a complex for burial of the dead and a ceremonial complex.”  “But,” he added, “I’m guessing here.  No one is absolutely sure.”  In fact, no Woodland period (or prehistoric in general, for that matter) artifacts were found in or near any of the stone piles, nor were any human remains encountered.

In a 1988 archaeological investigation report by Patrick Garrow and David Chase of Garrow Associates, Inc. (discussed here), the authors gave several arguments as to why the stone piles are likely prehistoric.   While some of the mounds are situated parallel to previous boundary lines, others are not.  If the piles were formed by farmers removing rocks from a field, wouldn’t they collect the stones along a property line, to keep “wasted” land to a minimum?  Also, why would area farmers bother to pile rocks in the first place, since the area was used as pasture and never actually plowed?  Why would farmers clearing a field bother to stack the rocks with so much care?  Finally, the rock piles are not random; many are located at equal distances from each other.  Wouldn’t rock piles formed by farmers clearing their fields be more randomly situated?  (Random, that is, if one overlooks the first idea, that the piles should be preferentially parallel to boundary lines.)  All of these arguments are based upon the rejection of one  alternative explanation for the stone piles: namely, that they could have been the work of post-settlement farmers clearing their land of rocks.  By arguing against this scenario, Garrow and Chase somehow managed to conclude that the piles have to be prehistoric because there is no other reasonable explanation for their origin. In short, there is not one single piece of evidence that the stone piles at Little Mulberry Park are actually prehistoric.  As we shall see in the final installment of this series, however, there is considerable evidence pointing to a different story behind the stone piles.

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.