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An Unexplored Realm in the Heartland of the Southern Gulf ... - Famsi

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direction, a series <strong>of</strong> hills approximately 4 km to <strong>the</strong> south <strong>of</strong> El Marquesillo effectively<br />

block any vistas <strong>in</strong> that direction. Numerous viewshed observations were made and<br />

recorded <strong>in</strong> <strong>the</strong> field, and <strong>the</strong>y along with analysis <strong>of</strong> <strong>the</strong> results from remote sens<strong>in</strong>g,<br />

aerial imagery, GPS and topographic mapp<strong>in</strong>g, and GIS analysis have revealed a series <strong>of</strong><br />

directional alignments at El Marquesillo. The arranged placement <strong>of</strong> multiple<br />

architectural constructions, l<strong>in</strong>ear magnetic anomalies, and artifact <strong>of</strong>fer<strong>in</strong>gs demonstrate<br />

five primary alignments; three are directed to major landscape locations and two appear<br />

to be celestially oriented. These directional patterns suggest that portions <strong>of</strong> <strong>the</strong> lay out El<br />

Marquesillo’s settlement pattern were deliberately designed to correspond with <strong>the</strong> major<br />

features across <strong>the</strong> landscape and possible celestial events. Figure 6.9 illustrates <strong>the</strong>se<br />

directional alignments. As a po<strong>in</strong>t <strong>of</strong> reference, <strong>the</strong> magnetic decl<strong>in</strong>ation at El<br />

Marquesillo, <strong>the</strong> current difference between true north and magnetic north, is 4º 11’. In<br />

o<strong>the</strong>r words, a correction <strong>of</strong> +4º must be applied to all magnetic read<strong>in</strong>gs taken at El<br />

Marquesillo <strong>in</strong> order to arrive at true north. This adjustment is not necessary for terrestrial<br />

locations, but is essential for <strong>in</strong>terpretation <strong>of</strong> any celestial alignments (NGDC 2005).<br />

Although I believe <strong>the</strong> alignments presented are compell<strong>in</strong>g evidence <strong>of</strong> a planned<br />

form and function at El Marquesillo, <strong>the</strong> attempt here is simply to <strong>in</strong>fer <strong>the</strong> axes <strong>of</strong> <strong>the</strong><br />

mound arrangements. While <strong>the</strong> terrestrial alignment patterns appear clear, <strong>the</strong><br />

astronomical or celestial orientations will require additional l<strong>in</strong>e <strong>of</strong> sight observations and<br />

measurements <strong>in</strong> <strong>the</strong> field for complete verification (<strong>An</strong>thony Aveni personal<br />

communication, 2006). A fur<strong>the</strong>r acknowledgment regard<strong>in</strong>g conditions on <strong>the</strong> ground is<br />

that, at El Marquesillo, <strong>the</strong> architecture is composed <strong>of</strong> ear<strong>the</strong>n mounds. Erosion along<br />

with o<strong>the</strong>r natural and human <strong>in</strong>duced destructive processes cont<strong>in</strong>ually affected <strong>the</strong>se<br />

287

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