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Mapping the History and Archaeology of Claude Moore Park. Goals and Objectives. Obtain GPS data for archaeological and historic resources at Claude Moore Park Combine with GIS data from Loudoun County in ArcMap Create maps for: Public outreach and education
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Goals and Objectives • Obtain GPS data for archaeological and historic resources at Claude Moore Park • Combine with GIS data from Loudoun County in ArcMap • Create maps for: • Public outreach and education • Informing the direction of future archaeological investigation at the park
Sites at Claude Moore Park - 1 • Vestal’s Gap Road • In use from prehistory through 1825 • Major route for French & Indian War and American Revolution: Washington, Braddock • Lanesville Heritage Area • Inn & farmhouse dates to 1700s • Assorted (not original) outbuildings • Possible cemetery • Active excavations behind the house Photo credit Kathryn Catlin 2007
Sites at Claude Moore Park - 2 • Civil War Site – both Union and Confederate • Signal station – hilltop • Shebangs – partially underground winter quarters • Prehistoric quartz debitage & spearpoints • Recently discovered surface finds • Historic treeline • Possible farm road • Springhouse ruins • Unknown age; shovel test pits Photo credit Kathryn Catlin, 2007, 2008
GPS Data Collection • Garmin eTrex • Attempted to use NVCC’s Trimble, but software installation was corrupted • Park visits: July 19 and 26, 2008 • Accuracy: 20 feet and below • Coordinate frame: • NAD 1983 UTM Zone 18N • Waypoints: sites as point data • Trackfiles: paths as line data • DNR Garmin • Projected shapefiles • Metadata Photo credit: garmin.com
Loudoun County Mapping & GIS • Coordinate Frame: • NAD 1983 HARN State Plane Virginia North FIPS 4501 Feet • Metadata: • Text files • Raster image: • From UVA Fisher Library website • Same coordinate frame • Data available from the server: • Buildings • Roads • Soils • Topology • Trees • Water • Etc. • Data obtained via email: • Hiking trails
Analysis: Preliminary • Trim all data to the borders of Claude Moore Park • Census tract • Buffer to include streets • Trouble with raster data • Transform GPS data to State Plane Coordinate System • Create personal geodatabase to store all shapefiles
Analysis: Organization • Group layers for County, GPS data • Extract GPS point data into new layers by type • Trees, excavations, buildings, sites, etc • Edit each point’s name in attribute tables • Extract trail data into new layers by color • Clip, trim, & modify track data • One clean line along Vestal’s Gap Road • Other tracks correspond to hiking trails
Trail Map • Includes macro view of sites • Enhance visitor experience Photo credit Kathryn Catlin 2008
Lanesville Area • Treeline • Shovel Tests • Behind house • Behind caretaker’s cottage • Test Squares • Outbuildings
Accuracy • Discrepancies between GPS and county data • As much as 25 feet off • Data not so good for predictive statistical analysis at this scale
Future Work • Repeat data collection with more accurate GPS device • Statistical analysis to determine accuracy vs. county data • Correlate archaeology with soil type • Historic vs. prehistoric? • Correlate artifacts and features with geographic data • Predict midden or privy location behind Lanesville house • Determine likelihood that treeline indicates farm road • Full extent of Vestal’s Gap Road • Correlate with historic maps • How much excavation and backfill of the roadbed was carried out when the park prepared it for hiking and driving?
Conclusions • Current project is a start at development of additional archaeological outreach materials • Data is not good enough yet for predictive archaeological modeling – general estimate only. Future work needed. Treeline – possible farm road East end of Vestal’s Gap Road Photo credit Kathryn Catlin 2007, 2008