Pedra Furada, Natural arch in Orleans, Brazil

Pedra Furada is a hilltop formation featuring a natural stone arch in Orleans, Brazil. The arch developed through gradual erosion of basalt rock that has worn away over millions of years.

The formation originated from intense volcanic activity that shaped the Santa Catarina region millions of years ago. This volcanic past created the mountainous terrain that still defines the landscape today.

The name Pedra Furada, or "Drilled Stone", comes from the 13-metre-high, 6-metre-wide opening in the basalt. The arch can be seen from the summit of Morro da Igreja, and reaching it requires a guide accredited for the trail within São Joaquim National Park.

The trail to reach this formation is physically demanding with steep sections and uneven ground requiring good fitness. Plan to start early and bring water, snacks, and weather-appropriate clothing for the mountain hike.

The opening measures about 13 metres high and 6 metres wide, cut through basalt laid down by successive lava flows roughly 160 million years ago. The arch can be seen from the summit of Morro da Igreja, and climbing on or near the rock requires a licensed guide.