State · AC · Region North

Acre

Brazil's far-western Amazon frontier: rubber-tapper heritage, pre-Columbian geoglyphs and forest reserves, with road links to Peru via the Interoceanic Highway.

Flag of Acre
Rio BrancoCapital
3Destinations
2Airports
Acre
Key figures
Area164,065 km²IBGE, 2025
Population830,018IBGE Census, 2022
BiomeAmazon (entire territory)IBGE, 2019
Time zoneUTC-5, restored in 2013Federal Law 12,876, 2013

The state

Acre sits at Brazil's western edge, bordering Peru and Bolivia, and was the last major territory added to the country, acquired from Bolivia in 1903 after a conflict fought largely by rubber tappers. That history still shapes its identity: extractive reserves where families harvest latex and Brazil nuts, the legacy of environmental leader Chico Mendes in Xapuri, and the Santo Daime religious tradition born near Rio Branco in the 1930s. The state is also home to hundreds of pre-Columbian geoglyphs, vast geometric earthworks revealed by deforestation and now on Brazil's Tentative List for UNESCO World Heritage.

For agencies, Acre suits special-interest and small-group programs rather than volume tourism: archaeology and aerial geoglyph viewing, forest-community and sustainability themes, indigenous cultural encounters, and overland itineraries toward Peru along the Interoceanic Highway via Assis Brasil. Rio Branco is the practical base with domestic flight connections, while Cruzeiro do Sul, in the Juruá valley, is the gateway to Serra do Divisor National Park, reached mainly by boat and with limited visitor infrastructure. Distances are long and many rural routes depend on river levels, so dry-season scheduling and experienced local operators are essential.

When to go

The drier months, roughly June to August or September, offer the most reliable roads and river-beach season. The rest of the year is hot and humid with heavy rainfall of around 2,100 mm annually.

Timeline

  1. Pre-Columbian

    Indigenous societies build hundreds of geometric earthworks, the Acre geoglyphs, with dates reaching into the second millennium AD.

  2. 1882

    Rio Branco begins as the rubber estate Seringal Volta da Empresa on the Acre River.

  3. 1899-1903

    Brazilian rubber tappers clash with Bolivia in the Acre War, including the short-lived Independent State of Acre.

  4. 1903

    The Treaty of Petrópolis transfers the territory from Bolivia to Brazil.

  5. 1904

    Acre is organized as a federal territory, with Rio Branco becoming its capital in 1920.

  6. 1962

    Acre is elevated to statehood.

  7. 1988

    Rubber tapper and environmental leader Chico Mendes is killed in Xapuri, drawing global attention to the Amazon.

  8. 1990

    The Chico Mendes Extractive Reserve is created, covering over 930,000 hectares across seven municipalities.

Landmarks

Acre Geoglyphs

Monumental geometric earthworks of pre-Columbian origin in eastern Acre, on Brazil's Tentative List for World Heritage.

Serra do Divisor National Park

Remote mountain rainforest on the Peruvian border with waterfalls and high biodiversity, reached by boat from Cruzeiro do Sul.

Chico Mendes Extractive Reserve

A vast reserve managed by traditional rubber-tapper families, named after the environmental leader.

Xapuri

Small historic town where Chico Mendes was born and lived, with his house preserved as a memorial.

Palácio Rio Branco

The 1930 former seat of government in the capital, now a history museum.

Gameleira and Rio Branco riverfront

The strangler fig marking the city's original settlement site, near the Joaquim Macedo pedestrian bridge over the Acre River.

Museu da Borracha

Rio Branco museum covering archaeology, paleontology and the rubber era.

Festivals and events

Expoacre

The state's major agribusiness and cultural fair in Rio Branco, usually in August, with a Juruá edition in Cruzeiro do Sul in July.

Festival da Farinha

Cruzeiro do Sul's celebration of its Geographical Indication cassava flour, usually held in September.

Festival do Açaí

Held in Feijó, usually in August, celebrating the local açaí harvest with food competitions and cultural shows.

Ready to start?

Let’s bring Brazil to your clients

Request a proposal