Sierra de las Quijadas — Potrero de la Aguada Enigmatic Walls
Sierra de las Quijadas walls · Potrero de la Aguada circular enclosure · Quijadas Potrero walls
Holocene natural / possibly Late Holocene human (unvalidated)·Unassigned Huarpes / Comechingón? / Jesuit?·🇦🇷 San Luis Province, Sierra de las Quijadas National Park, Potrero de la Aguada, Argentina
About
About Sierra de las Quijadas — Potrero de la Aguada Enigmatic Walls
Amphitheatre erosive basin 4,000 ha inside Sierra de las Quijadas (Potrero de la Aguada) with reddish 250 m farallón cliff walls, sandstone hoodoos and enigmatic low stone wall lines 40–80 m long, 0.6 m high, bracketing Potrero stream confluences. Interpreted variously as pre-Hispanic agro-pastoral enclosures, Huarpes sheep corrals, or Jesuit refuges; no ceramic sherds reported. Often promoted as 'Argentine Paititi' outlier and cited in pseudohistory forums as pre-Inca fortress. No systematic excavation — only CONICET botanical surveys and 2018 Parques lidar mention of rectilinear patterns. Verification hypothetical — natural vs cultural debated, walls possibly colonial field edges.
Why it mattersTests criteria for cultural walls vs campo corrals in sierras — no artifacts but wall geometry respects hydrology, raising questions of indigenous water management versus colonial pastoral reuse.
Open questions
Mysteries & theories
Mysteries
- 01Are walls pre-Hispanic Huarpes irrigation edges or 19th c. corrals?
- 02Why walls stop at stream forks — functional vs symbolic?
Theories
- 01Jesuit refuge thesis popular online but zero archival support
- 02Huarpes micro-silte irrigation bank hypothesis untested
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- unknown — walls possibly 17th–19th c. sheep corrals, fort claim undated
- Period
- Holocene natural / possibly Late Holocene human (unvalidated)
- Culture
- Unassigned Huarpes / Comechingón? / Jesuit?
- Purpose
- Stock corral, field edge or pseudohistoric fortress hypothesis
- Abandoned
- unabandoned depression still seasonal pasture — no dated abandonment
- Rediscovered
- No archaeological excavation; 1991 National Park noted walls as historic
- Excavation
- Unexcavated
1991
Sierra de las Quijadas National Park created, walls noted as historic corrals
2018
Parques lidar mentions rectilinear patterns in Potrero but unpublished
2022
Pseudohistory promotes as pre-Inca fortress — scholars refute
On the ground
Structures & features
32.5508° S · 67.0642° W · 980 m · 3 mapped features
Potrero de la Aguada Amphitheatre Basin
basin4000 ha erosive depression with 250 m red farallón walls and Rio Seco de la Aguada network
32.5520° S · 67.0650° WEnigmatic Low Walls (Stream Fork)
wall40–80 m dry stone wall segments 0.6 m high bracketing ephemeral stream confluences
32.5500° S · 67.0640° WFarallón Cornices and Hoodoos
geologicalPetrified dune sandstone columns, cornices and natural shelters around Potrero rim
32.5480° S · 67.0700° W
Gallery