Salineras de Maras
The Salineras de Maras are an Andean spring-fed salina: shallow evaporation wells descend a steep slope, supplied by branching gravity channels from saline water.
Place · salt-evaporation-pans-and-salina
Salinas da Fonte da Bica
Salinas de Rio Maior · Marinhas do Sal · Rio Maior salt pans
At Fonte da Bica, inland brine rises from an underground salt deposit and is solar-evaporated in traditional small crystallising pans at Rio Maior, Portugal.
History
The official Rio Maior parish history identifies a 1177 document recording the sale of a fifth share of Rio Maior saltworks. The cooperative describes traditional production continuing at Marinhas do Sal. Neither source dates the present pans or walls to 1177.
Site
SettingTraditional inland brine saltworks at Marinhas do Sal beside Fonte da Bica, on the Serra dos Candeeiros slopes near Rio Maior.
GroundValley-floor landscape containing small crystallising pans divided by low walls and drying platforms; source pages do not specify construction material.
ClimateSolar evaporation and wind; the cooperative describes usual production from May to September when weather conditions permit.
FootprintTraditional small talhos form a geometric salt-pan landscape; no total area or individual pan dimensions are stated here.
Structure and use
Risks and precautions
This is a heritage description, not permission to enter or alter the working salt pans.
Materials
- Saline groundwater brine — Drawn from the underground salt-water source and evaporated in the traditional crystallising pans.
- Rio Maior's saltworks are documented by at least 1177. The local parish history identifies a document from that year recording the sale of a fifth share of the Rio Maior salinas to the Order of the Temple. This is an early written record of saltworks at Rio Maior, not proof that every present-day pan or wall dates from the twelfth century. Claims of prehistoric salt use at the site remain unconfirmed in the sources used here.
- The Salinas da Fonte da Bica lie at Marinhas do Sal, around three kilometres from Rio Maior, in a valley on the slopes of the Serra dos Candeeiros. Unlike a coastal seawater salina, the installation uses brine from underground saline groundwater. The salt cooperative describes a subterranean current feeding a well, while Portugal's tourism authority locates the pans by Fonte da Bica.
- Brine is drawn from the well and spread through small, traditionally laid-out crystallising pans called talhos. The Fonte Salina cooperative describes the system as natural evaporation by solar warmth and wind. Its technical account says producers generally work seasonally from May to September when the weather allows evaporation; this is a description of usual practice, not a guaranteed annual calendar.
- Surface fleur de sal forms first when the brine reaches saturation. The cooperative describes gently skimming this thin surface layer with a coador, without touching the bottom or edge. As evaporation continues, larger salt crystals settle at the bottom; producers scrape them with shovels. Thus, the harvested forms come from different positions in the same pan rather than from different water sources.
- The bottom salt is formed into small pyramid-like heaps on eiras, drying platforms beside the low divisions between pans. The cooperative reports that salt dries there before being moved to storage. It also describes the site as a living salt landscape whose traditional methods have changed little across many centuries. The written 1177 record supports the medieval history; it does not establish the age of current individual crystallisers.
- This page describes the source-specific spring-brine salina and its documented solar-evaporation process. It is not a construction plan: the sources do not give dimensions, pan-bed materials, retaining-wall specifications, ground stability calculations, or an engineering layout. The site is a working cultural landscape, so access and work require the cooperative's permission.
Places
Salinas da Fonte da Bica, Marinhas do Sal
Traditional preparation · Locality evidenceAt Marinhas do Sal beside Fonte da Bica, around three kilometres from Rio Maior; no exact bed coordinates are asserted.
Related
Same method
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Sources
Cooperativa do Sal Fonte SalinaMethod · Seasonality · Tools · Salt products
Informações TécnicasThe cooperative describes traditional crystallising pans, seasonal solar and wind evaporation, surface fleur de sal skimmed with a coador, bottom salt scraped with shovels, and drying on eiras.
The technical page describes groundwater salinas as source-brine salt and seasonal work when weather permits evaporation.
Cooperativa do Sal Fonte SalinaSite location · Brine source · History
Visitas GuiadasThe cooperative locates the salinas at Marinhas do Sal, about three kilometres from Rio Maior, and describes the underground saline source feeding a well.
The page identifies the earliest known document as 1177 and describes the pans as a living salt-making landscape.
Visit Portugal, Turismo de PortugalSite geography · History
Salinas da Fonte da BicaVisit Portugal locates the pans at Fonte da Bica, Marinhas do Sal, around three kilometres from Rio Maior, on the Serra dos Candeeiros slopes.
The page describes a long salt-extraction history with documentary references in 1177 and subterranean rock-salt brine.
Junta de Freguesia de Rio MaiorHistorical attestation
HistóriaThe parish history says the 1177 document records sale of a fifth share of Rio Maior saltworks by Pero d’Aragão and Sancha Soares to the Order of the Temple.