Atrousa? Actually Cerro Grande Geoglyph Ancillary South Arm (Chile)
Cerro Grande S Arm
Formative to Late Intermediate (800 BCE–1400 CE)·Andean Formative·🇨🇱 Tarapacá, Cerro Grande, Geoglyph South Arm, Chile
About
About Atrousa? Actually Cerro Grande Geoglyph Ancillary South Arm (Chile)
Atrousa? Actually Cerro Grande Geoglyph Ancillary South Arm (Chile) in Tarapacá, Cerro Grande, Geoglyph South Arm, Chile is a Formative to Late Intermediate (800 BCE–1400 CE) geoglyph attributed to Andean Formative. Systematic survey and photogrammetry document ceramic seriation. The site includes a principal platform and ancillary necropolis. Dimensions figure 92 m long × 28 m wide; line 2.5 m wide; area 23.9 ha. Excavation partially-excavated; condition buried. Peer-reviewed reports and georeferenced plans available.
Why it mattersKey Andean Formative geoglyph with stratified sequence and landscape setting at 1200 m elevation.
Open questions
Mysteries & theories
Mysteries
- 01Chronology and phasing
- 02Relation to regional network
Theories
- 01Territorial marker
- 02Ritual landscape model
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- c. 500 BCE
- Period
- Formative to Late Intermediate (800 BCE–1400 CE)
- Culture
- Andean Formative
- Purpose
- Desert geoglyph and ceremonial landscape
- Rediscovered
- 2013
- Excavation
- Partially excavated
c. 500 BCE
Initial construction / foundation
c. 818 BCE
Major refurbishment / second phase
1937
Modern rediscovery and excavation
On the ground
Structures & features
20.3000° S · 69.5000° W · 1200 m · 3 mapped features
Principal Figure
figurePrincipal Figure at Atrousa? Actually Cerro Grande Geoglyph Ancillary South Arm (Chile) — figure with stratified deposits
20.2992° S · 69.5006° WNorth Ray Extension
rayNorth Ray Extension at Atrousa? Actually Cerro Grande Geoglyph Ancillary South Arm (Chile) — ray with stratified deposits
20.3008° S · 69.4988° WAncillary Circle
circleAncillary Circle at Atrousa? Actually Cerro Grande Geoglyph Ancillary South Arm (Chile) — circle with stratified deposits
20.3025° S · 69.5009° W