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1. In a web browser, go to the University of Pittsburgh Comparative Archaeology Database at http://www.cadb.pitt.edu/.
2. Click Datasets by Goegraphic Region >>.
3. Scroll down to the CENTRAL AMERICA section.
4. Click the dataset assigned to your project group: Río Tonosí Valley, San Ramón de Alajuela, Masaya, OR Volcán Barú. (NOTE: The demonstration was performed using Upper Térraba.)
5. Scroll down to THE DATASET section.

6. Under the Spatial Information section, there is a paragraph describing the coordinate system used in the AutoCAD files. Record this information, if available, as shown below.

   
   

   Info
   Project Site Coordinate System Description Masaya UTM Zone 16 P (units are meters) based on the WGS84 datum San Ramón de Alajuela None listed Río Tonosí Valley UTM Zone 17 N (units are in meters) based on the WGS84 datum Upper Térraba Costa Rica national mapping grid system: CRTM05 Volcán Barú None listed

7. Under the Spatial Information section, click the link containing your collection lots.
   
   

   Info
   Project Site Link to Spatial Collection Lot Data Masaya Collection lots San Ramón de Alajuela Spatial Information Río Tonosí Valley Survey collection lots Upper Térraba Collection lots Volcán Barú Sites Map

8. Scroll to the bottom of the webpage and click the DXF file link to download.
9. On the browser, click the back button to return to your main dataset webpage.
10. Under the Numeric Data section, click ?
11. Scroll to the bottom and click the XLS file link to download

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