Chã das Caldeiras (Fogo, Cape Verde)

Geology and form

The caldera formed by major volcanic activity and collapse associated with earlier eruptions. A high ring of mountains called the bordeira defines the western boundary and rises to about the elevation commonly quoted for Fogo's high terrain (around 2,700 m). Within the hollow sits a younger central cone: the active stratovolcano known as Pico do Fogo, which grew after the collapse that created the plain. Periodic eruptions from the inner cone continue to shape the caldera floor and nearby slopes.

Human presence and uses

Despite volcanic risk, Chã das Caldeiras supports small settlements and agricultural terraces. Local residents cultivate grapes, vegetables and other crops on fertile volcanic soils, producing local wines and foodstuffs adapted to the cooler, more humid microclimate. Traditional stone houses and paths are woven into the landscape, and life in the caldera reflects a long history of adaptation to the volcanic setting.

History and volcanic activity

The caldera’s history alternates long dormant phases with episodes of intense activity that can reshape communities. Because the inner cone remains active, eruptions have occasionally forced evacuations and caused damage to buildings and fields. These events are a reminder that resilience and hazard planning are a continuing part of life for inhabitants and visitors.

Tourism and access

Chã attracts hikers, volcanologists and cultural visitors interested in dramatic landscapes and traditional highland farming. Trails climb the interior and up toward the rim and the summit of Pico do Fogo, though access can be restricted after eruptive events and during recovery. The combination of geological interest and living communities makes the area important for geotourism and study.

Distinctive facts

Notable features include the broad enclosed plain, the high bordeira wall, and the juxtaposition of an active volcanic cone within a collapsed basin. Visitors and researchers commonly refer to source materials and practical guides when planning trips to the site; for introductory background see resources on volcanic calderas and Fogo island geology via links such as caldera summaries, regional pages for Fogo and national overviews of Cape Verde or thematic entries on eruption processes and cone development like diameter measurements and cone comparisons.