Graph of INAA data from Kenmotsu's 2005 study showing a clear separation between El Paso Polychrome (and plain brownware) recovered from La Junta sites (and several farther up the Rio Grande in Hudspeth County) and the "Presdio County Reference Group," which consists of La Junta wares. In other words, these data show that the El Paso wares and the La Junta wares were made from completely different clay sources. Figure 6 from laboratory report by Robert J. Speakman and Michael D. Glascock, University of Missouri; courtesy Nancy Kenmotsu.
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