Perspectives in the Pampa: ancient american huge ground drawings in Peru's desert

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Lines, line bundles and line centers
Most geoglyphs are lines, frequently only a few decimetres wide. They extend nearly always lineally over a few ten metres up to about 10 kilometres, also over steep slopes. Line bundles are frequent at the rim of highlands and show mostly down to the land below. There are line centres here and there on the flat plateaus.

Geoglyphs and contour lines after Lambers
Only some lines and other geoglyphs are recognizable in the satellite image (marked below). Parts are washed away by water masses after scarce but intense rainfalls (blue).
A section clarifies how a line tracable over more than 2 kms (red, also above) runs up and down the hill ridges.
Two line centres at the Nazca pampa, the main geoglyph area
Some line bundles (only these are marked) showing from the rim of the pampa plateau into the arable river oasis.
All images: QuickBird 2005 DigitalGlobe, distrib. by Eurimage

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