Threatened Archaeological, Historic and Cultural Resources of the Georgia Coast: Identification, Prioritization and Management using GIS Technology

Archaeological sites in beach and estuarine environments are continually threatened by diverse natural marine processes. Shoreline erosion, bluff retreat, and sea level rise all present potential for site destruction. Using historic maps, aerial imagery, and field survey methods in a GIS, 21 potentially significant archaeological sites on Georgia barrier islands were selected for determination of site-specific rates of shoreline change using a powerful, new, moving-boundary GIS analysis tool. A prioritized list of sites, based on the order of site loss from erosion, was generated to assist coastal managers in identifying and documenting sites most at risk. From the original selection of 21 sites, 11 sites were eroding, 8 shorelines were stable, and 2 shorelines were accreting. The methodology outlined here produces critical information on archaeological site loss rates and provides a straightforward means of prioritizing sites for detailed documentation. © 2010 Wiley Periodicals, Inc.

[1]  Chester W. Jackson.  Quantitative shoreline change analysis of an inlet-influenced transgressive barrier system : Figure Eight Island, North Carolina , 2009 .

[2]  S. Leatherman,et al.  Historical Shoreline Change: Error Analysis and Mapping Accuracy , 1991 .

[3]  L. Moore.  Shoreline Mapping Techniques , 2000 .

[4]  V. Thompson,et al.  Adaptive Cycles of Coastal Hunter-Gatherers , 2009, American Antiquity.

[5]  M. Dudzik.  OFFICE OF THE STATE ARCHAEOLOGIST , 1996 .

[6]  W. A. Turnbaugh.  Floods and Archaeology , 1978, American Antiquity.

[7]  J. Erlandson,et al.  The Systematic Use of Radiocarbon Dating in Archaeological Surveys in Coastal and Other Erosional Environments , 1999, American Antiquity.

[8]  R. Lewis.  Sea-Level Rise and Subsidence Effects on Gulf Coast Archaeological Site Distributions , 2000, American Antiquity.

[9]  S. Fitzpatrick,et al.  Coastal Erosion and Site Destruction on Carriacou, West Indies , 2006 .

[10]  M. Allen.  Holocene Sea-Level Change on Aitutaki, Cook Islands: Landscape Change and Human Response , 1998 .

[11]  D. Williams.  Short contribution: Marine erosion and archaeological landscapes: A case study of stone forts at cliff‐top locations in the Aran Islands, Ireland , 2004 .

[12]  Antonio J. Waring,et al.  Shell Ring On Sapele Island. In: the Waring Papers: the Collected Works of Antonio J. Waring, Jr , 1968 .

[13]  L. Smith,et al.  Geomorphic investigation of the terrebonne marsh, louisiana: Foundation for cultural resource surveys , 1989 .

[14]  D. Mills,et al.  An Introduction to Archaeology , 1979 .

[15]  M. Waters,et al.  The Geoarchaeology of Place: The Effect of Geological Processes on the Preservation and Interpretation of the Archaeological Record , 1996, American Antiquity.

[16]  M. Crook.  Prehistoric Pile Dwellers within an Emergent Ecosystem: An Archaeological Case of Hunters and Gatherers at the Mouth of the Savannah River during the Mid-Holocene , 2007 .

[17]  E. Thieler,et al.  Historical Shoreline Mapping (I): Improving Techniques and Reducing Positioning Errors , 1994 .

[18]  E. Robert Thieler,et al.  Historical Shoreline Mapping (II): Application of the Digital Shoreline Mapping and Analysis Systems (DSMS/DSAS) to Shoreline Change Mapping in Puerto Rico , 1994 .