Nascentes do Taquari

Nascentes do Taquari State Park protects approximately 30,618 hectares of Cerrado highlands in eastern Mato Grosso do Sul, Brazil, in the municipalities of Alcinópolis and Costa Rica. ^[1] Established in 1999, the park safeguards the headwaters of the Taquari River, one of the most important tributaries of the Paraguay River and a critical water source for the Pantanal wetlands downstream. ^[2] The park sits atop the Serra do Taquari plateau and features dramatic Cerrado landscapes, sandstone cliffs, waterfalls, clear springs, and archaeological sites with ancient rock art. It forms part of the Pantanal Biosphere Reserve and plays a vital ecological role as a hydrological and biodiversity refuge in a region heavily impacted by soybean agriculture and cattle ranching.

The park's Cerrado and gallery forest habitats support a variety of wildlife, including maned wolves, giant anteaters, giant armadillos, tapirs, pumas, ocelots, pampas deer, and marsh deer. Primates include black-tufted marmosets and capuchin monkeys. Birdlife is especially rich, with blue-and-yellow macaws, red-and-green macaws, toucans, king vultures, burrowing owls, seriemas, and numerous Cerrado specialists. The headwater streams support several species of characins, catfish, and other freshwater fish, along with otters and caimans in larger pools. Reptiles include tegus, boa constrictors, and rattlesnakes, while amphibians and invertebrates flourish in the humid gallery forests along the springs.

The vegetation is dominated by Cerrado formations, including cerrado sensu stricto woodland, campo cerrado, open grassy campos, and campo rupestre on rocky outcrops. Gallery forests along streams host tall evergreen trees and buriti palms (Mauritia flexuosa), creating ribbons of green through the drier plateau. Characteristic Cerrado species include pequi, lobeira, pau-terra, ipê, and jatobá, many with deep taproots and fire-resistant adaptations. Orchids, bromeliads, and velloziaceae occupy rocky sites, while seasonal wildflowers produce spectacular blooms after the first rains. The flora reflects the Cerrado's renowned biodiversity, with many endemic and near-endemic species of global conservation concern, including numerous medicinal and culturally important plants.

The park occupies a portion of the Maracaju-Campo Grande plateau, underlain by sandstones and overlain by basaltic flows, all part of the Paraná Sedimentary Basin. ^[1] These formations date from the Paleozoic and Mesozoic eras, with the basalts erupting during the breakup of Gondwana around 130 million years ago. Erosion has sculpted the plateau into striking landforms including sandstone cliffs, canyons, caves, and tablelands — the park contains six large canyons formed in the Chapadão de Baús. The springs and waterfalls that give the park its name (Taquari Headwaters) emerge from porous sandstones that store abundant groundwater, making the area hydrologically crucial for the downstream Pantanal. Rock shelters preserve archaeological paintings from prehistoric inhabitants.

The park experiences a tropical savanna climate with a pronounced wet season from October to April and a dry season from May to September. Annual rainfall averages around 1,500 to 1,700 millimeters, concentrated during the summer thunderstorms that swell the headwater streams. Temperatures typically range from 15°C on cool dry-season nights to 33°C during the hottest months, with occasional southern cold fronts briefly dropping temperatures in the winter. The dry season is the preferred time to visit for hiking, trail access, and safer river crossings, though the waterfalls are most dramatic during or just after the wet season. Fire risk peaks in the late dry season, when human-caused fires pose a significant threat.

The region has been inhabited for thousands of years, as evidenced by prehistoric rock paintings preserved in sandstone shelters within and near the park, with some archaeological sites dating back approximately 11,000 years. ^[1] In historical times, the area was occupied by Indigenous groups ancestral to the Kayapó, Terena, and others who utilized Cerrado resources and maintained complex territorial networks. European colonization intensified in the 19th century with cattle ranching and later expanded rapidly in the 20th century with mechanized soybean agriculture, which now dominates the surrounding landscape. The towns of Alcinópolis and Costa Rica grew as agricultural centers, while small rural communities have long relied on the Taquari River and its tributaries for water, fishing, and transport.

Nascentes do Taquari State Park was created by Mato Grosso do Sul state decree No. 9.662 on 19 October 1999 to protect the headwaters of the Taquari River, conserve critical Cerrado biodiversity, and safeguard archaeological sites with rock art. ^[1] Its establishment was driven by concerns over rapid agricultural expansion in the region and the downstream impact of soil erosion and sedimentation on the Pantanal wetlands, where the Taquari River had caused major hydrological changes due to land-use impacts. Management is overseen by IMASUL, the state environmental agency, with support from partner organizations. Since its creation, the park has become a focal point for Cerrado conservation, archaeological research, and the development of sustainable ecotourism.

The park's main attractions include numerous waterfalls, clear spring-fed pools, and dramatic sandstone cliffs with panoramic views over the Cerrado. Hiking trails lead to viewpoints, canyons, and rock shelters decorated with prehistoric paintings, some dating back approximately 11,000 years and depicting animals, geometric patterns, and human figures. ^[1] The six large canyons formed in the Chapadão de Baús offer exceptional landscapes. The Gruta dos Índios and other caves display archaeological and geological interest. Birdwatching, photography, and nature interpretation are popular activities, and the park's remote location provides a strong sense of wilderness.

Access to the park is via the municipalities of Alcinópolis or Costa Rica, reached by paved highways from Campo Grande, the state capital, approximately 270 kilometers to the southwest. ^[1] Campo Grande has an international airport with regular flights. From these towns, unpaved roads lead to the park, and a high-clearance vehicle is recommended, especially during the wet season. Infrastructure within the park is limited; visitors should coordinate with local guides and tour operators. Accommodations are available in nearby towns, ranging from basic hotels to small pousadas. Visitors should bring plenty of water, sun protection, and be prepared for self-sufficient travel.

The park faces major conservation challenges from surrounding soybean agriculture, cattle ranching, wildfires, illegal hunting, and pressure on its archaeological resources from unauthorized visitors. The hydrological role of the park is especially important: upstream erosion and sedimentation have caused severe impacts on the Taquari River — described as one of the most degraded rivers in the Pantanal basin of Mato Grosso do Sul — and the downstream Pantanal floodplain. ^[1] Efforts by IMASUL and partner NGOs focus on fire prevention, habitat restoration, environmental education, and strengthening protection of rock art sites. The park is part of the Pantanal Biosphere Reserve, reinforcing its regional conservation importance.