Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif

Why it mattersKey Lisbon Neolithic Adrenunes megalithic with stratified sequence and regional typology.

Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.

Built

c. 3500 BCE

Period

Neolithic (3500 BCE) Sintra coastal group

Culture

Lisbon Neolithic Adrenunes

Purpose

Atlantic coastal table dolmen (capstone 4 m × 3 m, 12 t on 3 orthostats) with quartz veins — Sintra's Sintra group Atlantic view dolmen over Adraga cliff

Rediscovered

Modern excavation 1881

Excavation

Partially excavated

1. 1970 excavation

   Modern rediscovery and scientific excavation of Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif

2. c. 3500 BCE

   Initial construction / first occupation at Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif

3. c. 200 CE major extension

   Major expansion / refurbishment at Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif

• Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif — Principal Standing Stone

  standing stone

  standing stone at Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif — subsidiary complex

  38.8023° N · 9.4821° W

• Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif — Chamber Annex 2

  chamber

  chamber at Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif — outlier feature

  38.8016° N · 9.4842° W

• Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif — Southern Cairn

  cairn

  cairn at Sintra — Anta do Adrenunes Coastal Table Dolmen Sintra Massif — outlier feature

  38.8030° N · 9.4813° W