Comparative Archaeology Database, University of Pittsburgh

Nepeña Valley Dataset
Hugo Cesar Ikehara Tsukayama

This dataset complements the dissertation Leadership, Crisis and Political Change: The End of the Formative Period in the Nepeña Valley, Peru by Hugo Cesar Ikehara Tsukayama (which can be freely downloaded from the University of Pittsburgh's Electronic Theses and Dissertations Database). It provides detailed information about the distribution and types of ceramic remains recovered during survey at the Nepeña Valley, in north coastal Peru. The data are discussed in full in the dissertation, whose contents are as follows:

Funding to collect the data presented here was provided by a National Science Foundation Doctoral Dissertation Improvement Grant (No. 1238352).

Ikehara Tsukayama, Hugo Cesar (2015) Leadership, Crisis and Political Change: The End of the Formative Period in the Nepeña Valley, Peru. Ph.D. Dissertation, Department of Anthropology, University of Pittsburgh.
Ikehara Tsukayama, Hugo Cesar (2016) Nepeña Valley Dataset. Comparative Archaeology Database, University of Pittsburgh. URL: <>.

Questions or comments about this dataset or the Comparative Archaeology Database can be directed to via email.

Designed by Alexander J. Martín

Numeric Data

Numeric data are provided in two file formats. Comma-delimited text files should be easy to import into spreadsheet, database, and statistical programs for manipulation and analysis. Excel spreadsheets are easier to browse, and can also be imported into many programs. The numeric data files are as follows:

Survey Unit Information: Information about the location, area, and ceramic counts and densities of each survey unit in the study area. Ceramic Inventory: Ceramic counts by ware type and period for each collection unit in the Nepeña Valley survey.
Ceramic Production Proxies: sherd counts for each collection unit for ceramic artifacts that serve as production proxies.

Spatial Information

Spatial information is provided as AutoCAD (Release 12) DXF and Esri SHP files. The coordinate system is UTM Zone 17L (units are meters) based on the WGS84 datum.

Survey Limits

Survey Units


Topographic Map


DEM of the Nepeña Valley

Units Belonging to Period I

Period I Districts

Units Belonging to Period II

Period II Districts

Units Belonging to Period III

Period III Districts

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Haga click aquí para la versión en español de este juego de datos.