Latin American Archaeology Database, University of Pittsburgh
URL: http://www.pitt.edu/~laad
Email: laad@pitt.edu 
Valle de la Plata Settlement Dataset
Robert D. Drennan
 
 Survey Lot Maps 

The "raw" locational data for all the individual survey lots in the three survey zones of the Valle de la Plata are provided as three AutoCAD (Release 12) .DXF files (see Figure 2.9). The files are named WESTERN_LOTSMAP.TXT, CENTRAL_LOTSMAP.TXT, and EASTERN_LOTSMAP.TXT for the western, central, and eastern survey zones. Because these .DXF files are ASCII text files, they have been named with the extension .TXT, which makes it easier to download and save them with some browsers. They will probably need to be renamed by changing the extension .TXT to .DXF in order to be read properly by some programs that import .DXF files. The layers in these drawings, their colors, and the information contained on each are as follows:

  • AREAS (Yellow): AutoCAD closed polylines, enclosing the areas represented by each of the individual lot collections.
  • BOUNDARY (Red): A single AutoCAD closed polyline, delimiting the boundary of the survey zone.
  • LOT_NUMBERS (Cyan): AutoCAD text strings giving the series and lot number designation for each lot, separated by an underscore. These text strings correspond to those in the variable "Key" in the survey lots dataset, and their insertion points are inside the polylines they correspond to, for AutoCAD or other programs capable of matching text strings to polylines in this way. (See Chapter 2 for an explanation of the numbering system for lots and sites.)
  • SAMPLE_UNITS (Blue): AutoCAD closed polylines representing the one-hectare sample quadrats for the portions of the eastern survey zone that were sampled (see Chapter 4).
  • SAMPLING_STRATA (Magenta): AutoCAD closed polylines delineating the environmental sampling strata for the sampling program in the eastern survey zone (see Chapter 4).
  • SITE_NUMBERS (Red): AutoCAD text strings giving the site numbers to which groups of contiguous lots were assigned for convenience. These numbers played no real role in the analysis.
  • UNSURVEYED (White): AutoCAD closed polylines, enclosing areas that could not be surveyed because of vegetation cover or because owners did not grant permission. This layer appears in the map of the western survey zone only (see discussion in Chapter 3.1).

Click here to download the file WESTERN_LOTSMAP.TXT (7,038 Kb) or the file CENTRAL_LOTSMAP.TXT (1,118 Kb) or the file EASTERN_LOTSMAP.TXT (1,123 Kb) and then ask your Web browser to save it to a disk. (Return here with your browser's BACK button.)

Return to Table of Contents