Paraguay's national parks are some of the country’s most intense natural landscapes, holding uncharted stories that remain largely unknown to the general public. "Into the Wild," a serial feature by the Asunción Times, highlights Paraguay's national parks in the order they were established. The fourth destination of this journey is Defensores del Chaco National Park, home to Cerro León, which reveals a massive mountain range rising over a vast plain.

Designated on August 6, 1975, this national park is one of the largest protected areas in Paraguay, providing a sanctuary for wildlife such as jaguars, giant armadillos, and tapirs amidst dry forests and lands. The park's name was established to honor the dedication of the veterans who fought in the Chaco War.

The Unique Vegetation and Ecosystem of the Dry Chaco

Leaving behind the water streams and lush greenery of Ybycuí National Park, the journey heads toward the Dry Chaco region. Here, forests, shrublands, and savannas appear alternately, forming dense woodlands along the slopes of Cerro León. This area serves as a core axis of the Chaco Biosphere Reserve designated by UNESCO.

The plants here have evolved to withstand a harsh and arid climate. Trees such as white quebracho, palo santo, and algarrobo grow harmoniously with cacti and epiphytes. In particular, the samu'u tree, with its unique, massive trunk shape bearing white flowers, completes the exotic landscape characteristic of this dry region. This marks a stark contrast in ecological traits from the lush natural environments visited previously.

Cerro León: A Massive Landform Rising Above the Plain

Breaking the monotonous and vast horizon of the Chaco region, Cerro León is the park's most iconic landmark. Reaching an elevation of about 600 meters, this expansive hilly terrain offers a dramatic change in altitude amidst a flat lowland.

According to data from Paraguay’s Ministry of Environment and Sustainable Development (MADES), this mountainous terrain features a massive mountain range stretching approximately 30 kilometers long and 20 kilometers wide. The forest covering this highland greatly expands the park's habitat diversity. Lifting the gaze from the lowland plain toward the sky, Cerro León functions as the undisputed central axis of this massive protected area.

The Breath of the Wild and the Homeland of the Ayoreo Indigenous People

Inside the park, animals such as jaguars, pumas, tapirs, giant anteaters, and giant armadillos make their home. The ecosystem is also composed of various birds like rheas and parrots, as well as reptiles such as boa constrictors, rattlesnakes, and giant tegu lizards. The Ministry of Environment's biodiversity portal also includes records of South American coatis and toco toucans, adding depth to the conservation value.

Furthermore, this area is the ancestral territory of the indigenous Ayoreo people. Some Ayoreo groups maintain voluntary isolation, keeping their distance from modern society, and their presence imparts deep anthropological significance to conservation efforts. For this reason, respecting indigenous territorial rights is essential when exploring the park, and entering absolute protection zones strictly requires prior approval and the accompaniment of a park ranger.

Preparation and Attitude for Visiting

Located over 700 kilometers away from the capital city of Asunción, Defensores del Chaco National Park is a remote area that demands thorough preparation. Securing a visit permit through local environmental authorities and checking entry procedures and ranger guidance availability is necessary for a safe exploration. For those who meticulously prepare drinking water, food, fuel, and camping supplies, this park delivers the profound emotion of wildlife observation, photography, and trekking.

Within the pilgrimage of Paraguay's national parks, Defensores del Chaco demonstrates unrivaled scale and vitality. Crossing rugged horizons, primeval forests, and the intersection of human and natural history, this space breathes forever as a precious record of the wild remaining on Earth.

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