El Dorado — Lake Parime Uruao Extension (Manau Phantom Shore)
Lake Parime Uruao · Parime Urua manau · El Dorado Uruao extension · White Sea Rupununi
Holocene savanna seasonal flooding; colonial cartographic projection onto Rupununi hydrology; pre-Columbian savanna field ridges (no Manoa horizon)·Wapishana savanna field ridges (500–1500 CE) projected as Manoa by European cartographers·🇧🇷 Roraima, Uruao floodplain south of Lake Parime core (Boa Vista north), Brazil
About
About El Dorado — Lake Parime Uruao Extension (Manau Phantom Shore)
Lake Parime Uruao southern extension hypothesizes El Dorado's Manoa lay on Uruao seasonally flooded savanna south of classic Parime–Rupununi basin (BR-GY border 3.5N 59W) where Raleigh-San Miguel maps placed Manoa entre Perit and Polime tributaries. Uruao savanna forms 2000 km² seasonal lake 0.3–1 m Aug–Oct, now dry savanna Feb–Apr exposing black-cotton clay cut by indigenous causeways 3 km not natural. No permanent Manoa masonry; claimed earthworks are savanna field ridges misread as walls. Treated hypothetical phantom lake vs seasonal varzea misidentification.
Why it mattersTests cartographic error propagation: how a seasonal pan viewed via relay becomes 500 km inland sea — Uruao variant demonstrates second relay error 200 km south of Parime core.
Open questions
Mysteries & theories
Mysteries
- 01Is Uruao varzea permanent lake or savanna pan during Raleigh informant visit Aug?
- 02Are 3 km causeways harbour quays or field ridges?
Theories
- 01Uruao southern tributary mis-placed Polime on Raleigh map caused ghost extension
- 02Manoa was misreading of Wapishana village Matuão
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- 500–1500 CE field ridges; Raleigh maps 1595 project Manoa onto varzea
- Period
- Holocene savanna seasonal flooding; colonial cartographic projection onto Rupununi hydrology; pre-Columbian savanna field ridges (no Manoa horizon)
- Culture
- Wapishana savanna field ridges (500–1500 CE) projected as Manoa by European cartographers
- Purpose
- Savanna manioc field-ridge polity misread as El Dorado Manoa harbour
- Abandoned
- no Manoa abandonment — seasonal lake still forms Aug–Oct
- Rediscovered
- 1595 Raleigh reports; 1839 Schomburgk Amuku survey demotes Lake Parime to small Amuku; 2020 aerial savanna ridge mapping
- Excavation
- Unexcavated
1595
Raleigh publishes Warrau guide Lake Parime as inland sea housing Manoa
1840
Schomburgk proves Lake Amuku small — Parime reduces to 40 km savanna pan
2020
Aerial LiDAR savanna reveals field ridge causeways 3 km Uruao — not Manoa walls
On the ground
Structures & features
3.4500° N · 62.2500° W · 95 m · 3 mapped features
Uruao Seasonal Lake Pan (2000 km² varzea)
lakeBlack cotton seasonal lake 2000 km² 0.3–1 m Aug–Oct — Raleigh inland sea source
3.4510° N · 62.2520° WWapishana Field Ridge Causeways (3 km)
fieldField causeway ridges 3 km mistakenly called Manoa harbour walls
3.4490° N · 62.2480° WAmuku Core Parime Pan (reference)
lakeSmall natural Lake Amuku 15 km² — remnant of Schomburgk's real Lake Parime
3.6500° N · 59.8000° W