Barranco Alto: Rivers and Rubber History

Barranco Alto is shaped by a history of the rubber trade, river routes, and expeditions. In 1915, Américo Casara established the headquarters of his rubber estate in Barranco Alto, where the Rio Verde flows into the Rio Corumbiara. An expedition led by Indigenous interpreters also passed through Barranco Alto. These connections between water, work, and exploration give the town’s history a distinct historical focus.

Settlement and the Rubber Trade

Around 1940, Barranco Alto had 30 houses, including a rubber depot. This brings the settlement itself into focus alongside the estate headquarters. The two details offer different insights into the place: its economic role on the river and the life of a settlement with houses and a depot at the time.

Between 1920 and 1935, Casara sold rapadura, cachaça, meat, and manioc flour in the region to local rubber estates and to employees of the Pimenta Bueno telegraph station. The list of goods ranges from food to drinks and identifies the buyers in the regional trade: estates and the station. For travelers interested in everyday and economic history, this look at traded products adds a perspective on local history that differs from those of expeditions and concessions.

People and Expeditions

Several women from the Aikanã community, including Salamãi Wãzerip, lived in Barranco Alto for periods of time. They worked in the fields and in food production at the rubber estate. Agriculture and food production are therefore among the place’s tangible connections, alongside trade and exploratory journeys. If you’re traveling with children, these different activities can be a starting point for a conversation: What was grown, made, and sold?

Rubber estates also played a role in technical expeditions across the region. In the Corumbiara-Apediá region, the Casara family’s rubber estate supported such ventures. These included the 1927–1928 expedition led by engineer Dr. Francisco Erse to demarcate the Guaporé Rubber concession. In 1929, Lieutenant Aníbal Freire undertook an expedition accompanied by Captain Salamãi Telêmaco. In 1930, Lieutenant Aluízio Ferreira led another expedition; at the time, he was director of the Madeira-Mamoré Railway by order of Rondon. Another connection to the history of Indigenous presence: an expedition led by Indigenous interpreters passed through Barranco Alto.

Rivers, Routes, and Landscape

The waterways also tell the story of the region’s conditions. A water plant called Colchas historically made navigation difficult in the Barranco Alto area. A historic 200-kilometer varadouro connected Barranco Alto with Cascata, the mouth of the Rio Tanaru, and the Pimenta Bueno telegraph station at the mouth of the Rio Apediá. Its length makes the regional reach of this historic connection clear.

Varadouros were historically paths cut through the forest, about one to two meters wide. Rubber tappers used them to transport rubber by mule train from extraction and production sites to the barracões on the riverbank. River travel and mule transport thus represent different routes used to move rubber.

Nearby Cascata lies on the Rio Apediá. The place is considered historically significant for Indigenous activities, with its many paths and petroglyphs. The wider travel area also includes Corumbiara State Park. It lies in an important transition zone between the Cerrado and the Amazon and protects natural grasslands, forests, and springs that help preserve regional biodiversity. Cascata and the park thus offer different regional perspectives on history and landscape.

Which aspects suit your trip?

When planning your trip, it’s worth distinguishing the local history from the themes of the wider area: Barranco Alto represents the estate headquarters, the settlement, and the river connections; nearby Cascata has historical ties to Indigenous activities, while Corumbiara State Park defines the natural environment of the wider region. Choose your vacation rental search based on which of these perspectives you want your trip to focus on. Before visiting, check which places are currently accessible.

Discover more destinations: Porto Velho, Ariquemes, Cacoal, Costa Marques, Cabixi, Vilhena, Abraão, Palmeira

For the broader travel guide: Rondônia.