Cerro Juanaqueña is the largest of the Late Archaic
cerros de trincheras. The circular, upper portion of the site
is 320 meters by 240 meters in size, and within that area virtually
every square meter has been modified by the construction of walls
and terraces. It is estimated that construction of these features
involved moving over 40,000 tons of material. The site is dated
by over 40 projectile points, 38 of which are types diagnostic
of the Late Archaic Period. There is no pottery on the site, but
a variety of other stone artifacts reflect a wide range of day-to-day
activities. It is not known why these features were built on isolated
hills, or even what exact functions they served. At Cerro Juanaqueña
there is a tight grouping of features centered on the summit of
the hill, and another band of terraces near its base.
-- John Roney