Palmar Sur

Ancient Roots and the Mysteries of the Diquis Delta

The history of the area where Palmar Sur is located today is rooted deep in the Pre-Columbian era. Long before modern maps appeared, these lands in the Diquis River delta were inhabited by indigenous peoples who created a sophisticated culture. It was here that Costa Rica's famous stone spheres were found, which are now considered a symbol of the region and a major archaeological mystery.

Founding of the Modern Settlement

As a modern settlement, Palmar Sur took shape in the 1930s. A key moment in its history was the arrival of the agro-industrial giant, the United Fruit Company. The company moved its banana plantations from the Caribbean coast to the Pacific, choosing the fertile lands around the Térraba River for large-scale development.

Key Factors for Development

The transformation of the territory into an important agricultural and transport hub was due to several reasons:

• Geographical Location: The town is situated on a plain near the Río Grande de Térraba, the country's largest river. This provided rich alluvial soils ideal for farming.
• Transport Infrastructure: To export the harvest, a railway and a small airport were built; the airport is still operational today, connecting the south of the country with the capital.
• Layout: Palmar Sur was built as a typical "company town" with a clear structure, administrative buildings, and residential quarters for workers, which have preserved the distinct architectural style of that era.

Cultural and Economic Features

From the beginning, the town's economy was built around agriculture, which defined the way of life for local residents. A unique feature of Palmar Sur is the coexistence of 20th-century industrial history with ancient artifacts: many stone balls were discovered specifically during the clearing of land for plantations, forever linking the town's agrarian history with the archaeological heritage of its ancestors.

Key Milestones of Development

• 300–1500 AD — An indigenous culture flourishes in the Diquis Delta, creating the famous stone spheres, many of which were later found in the vicinity of Palmar Sur.
• 1934 — The United Fruit Company begins active development of the southern part of Costa Rica, laying the foundations of the modern settlement to serve the banana plantations.
• Late 1930s — Construction of the Southern Railway, connecting the Palmar Sur plantations with the port of Golfito for product export.
• 1940s — While clearing jungle for agricultural land, workers discover numerous ancient stone balls, attracting the attention of the scientific community.
• 1943 — Archaeologist Doris Stone publishes the first reports on the region's mysterious spheres in the academic journal American Antiquity.
• 1955 — Harvard archaeologist Samuel Lothrop conducts large-scale excavations in the Diquis Delta region, documenting finds near Palmar Sur.
• 1984 — United Brands Company (the successor to United Fruit) shuts down banana production in the region due to economic reasons and plant diseases.
• Late 1980s — The region's economy reorients toward oil palm cultivation, changing the agricultural landscape around the town.
• 1996 — Opening of the Finca 6 Archaeological Site and stone sphere museum near the town.
• 2014 — The chiefdom settlements and stone spheres of the Diquis, located in the Palmar Sur area, are officially included in the UNESCO World Heritage List.
• Present Day — The town functions as an important transport hub for the Puntarenas province and a center for the agro-industry, while preserving its unique historical heritage.

Stages of Transformation: Economy and Culture

The development of Palmar Sur is a story of an agrarian outpost transforming into a guardian of world cultural heritage. Several key stages can be identified that defined the modern appearance and significance of the town:

• Establishment of United Fruit Company Infrastructure (1930s)
  The arrival of the American company was the catalyst for the town's growth. Administrative buildings, residential quarters for workers and managers, schools, and hospitals were built. This turned scattered settlements into a structured town with a clear layout and characteristic "plantation" architecture.
• The Transport Revolution and the Railway
  The construction of a railway line connecting the plantations to the port of Golfito and the opening of a local airport were of strategic importance. This brought the region out of isolation, ensuring the export of products and an influx of specialists, which stimulated economic growth.
• Archaeological Discoveries in the Diquis Delta
  The discovery of hundreds of perfectly round stone spheres during agricultural work radically changed the cultural status of the area. The town gained fame as an archaeological center, attracting the attention of the global scientific community to the heritage of Pre-Columbian civilizations.
• Transition from Bananas to Oil Palms (1980s)
  The departure of the banana giants could have led to decline, as happened in other regions. However, the reorientation of the economy toward the cultivation of oil palm (African palm) allowed the town to maintain economic stability, jobs, and its agrarian profile.
• UNESCO Recognition (2014)
  The inclusion of the chiefdom settlements and stone spheres on the World Heritage List was a turning point for tourism potential. This event secured Palmar Sur's status as an important cultural destination, stimulating the development of services and infrastructure for travelers.

The "Company Town" Urban Concept

The architectural landscape of Palmar Sur is unique for Costa Rica, as the town did not develop spontaneously but according to a strict master plan by the United Fruit Company. In the 1930s, the "Company Town" concept was implemented here, where functionality and hierarchy defined the settlement's structure.

Urban planning at that time clearly divided the territory into zones:

• Residential Quarters: Strict zoning separated housing for executive staff (expats) and workers.
• Infrastructure Center: Administrative buildings, a church, a school, and a club were concentrated around the central square (park).
• Logistics Hubs: The railway and airfield were integrated into the urban fabric for the rapid export of products.

Architectural Styles and Eras

In Palmar Sur, classical European styles like Baroque or Gothic are virtually non-existent. Instead, the town serves as an open-air museum for two completely different eras:

1. Tropical Colonial Style (1930s–1950s)

This is the dominant style of the historical part of the city, shaped during the "banana boom." Buildings were designed taking into account the region's humid, hot climate.

• Characteristic Features: Houses raised on high stilts to protect against flooding and pests; wide roof eaves that provide shade; the use of wood as the primary material; large windows with mosquito nets for cross-ventilation.
• Iconic District: The so-called "Zona Americana" (American Zone) — the former residential area for company managers. Spacious wooden cottages with manicured lawns have been preserved here, demonstrating the influence of Southern US architecture and Caribbean traditions.

2. Pre-Columbian Heritage (300–1500 AD)

While these are not buildings in the traditional sense, the stone spheres and the layout of ancient settlements in the vicinity (such as Finca 6) represent the oldest layer of the region's "architecture." They are examples of landscape design and engineering by indigenous peoples who used the stone balls to signify status and the boundaries of public areas.

Current State

Utilitarian functionalism prevails in modern construction. New buildings are made of concrete and blocks, which is typical for rural Costa Rica. However, the historical core of Palmar Sur retains its mid-20th-century atmosphere. The Central Park, where modern public spaces sit alongside ancient stone spheres and old buildings from the United Fruit era, remains the main symbol of the town's eclectic character.

Prominent Figures in the Region's History

The history of Palmar Sur is inextricably linked to two completely different worlds: the agro-industrial expansion of the 20th century and the mysterious Pre-Columbian civilization. The people who played a key role in the town's fate include the entrepreneurs who built it and the scientists who revealed its ancient secrets to the world.

Architects of the "Banana Empire" and Pioneers

• Samuel Zemurray
  President of the United Fruit Company, Entrepreneur
  Although Zemurray managed a global empire from the United States, it was his strategic decision in the 1930s to move major banana plantations from the Caribbean coast to the Pacific that led to the founding of Palmar Sur. Under his leadership, the town's infrastructure was created, including residential quarters, the railway, and the airport, which defined the settlement's appearance for decades to come.
• Doris Zemurray Stone
  Archaeologist, Ethnographer
  The daughter of Samuel Zemurray, she used her father's company's resources for scientific advancement. When workers clearing the jungle in the Diquis Delta began finding stone spheres, it was Doris Stone who first recognized their significance. She began documenting the finds in the 1940s and drew the attention of the international scientific community to the region's heritage, preventing the destruction of many artifacts.
• Samuel Lothrop
  Archaeologist, Peabody Museum (Harvard)
  One of the first scientists to conduct large-scale excavations in the Palmar Sur area and at the nearby "Finca 6" between 1948 and 1955. His detailed reports and maps of the stone spheres' locations became the foundation for all subsequent research into the Diquis culture. Thanks to his work, we know the original placement of many spheres that were later moved.

Heritage Guardians and Cultural Figures

• Ifigenia Quintanilla
  Anthropologist, Leading Expert on Diquis Culture
  A contemporary Costa Rican researcher who has dedicated her career to studying the stone spheres of southern Costa Rica. Her scientific works and active advocacy played a decisive role in having the archaeological sites around Palmar Sur included in the UNESCO World Heritage List in 2014, giving a new impetus to tourism development in the town.
• Jorge Jiménez Deredia
  Sculptor
  A world-renowned Costa Rican sculptor whose work is directly inspired by the stone spheres of the Palmar Sur region and the Boruca culture. Although not a permanent resident of the town, Deredia has become the region's primary cultural ambassador to the world. His monumental works, exhibited from Rome to Mexico City, popularize the aesthetics and philosophy of the ancient masters of the Diquis Delta.