Which is the highest habitable region in Middle and South America?

The highest habitable region in Middle and South America is the Puna. This region is typically found at altitudes ranging from about 3,200 meters (10,500 feet) to 4,800 meters (15,700 feet) above sea level, primarily in the Andes mountains. The Puna is characterized by its unique ecosystem, which supports various forms of life adapted to high altitudes, including grasses and some hardy shrubs. It is also known for its use by indigenous peoples for farming, particularly of crops that can withstand the cooler temperatures and lower oxygen levels at such elevations.

The Tierra fría and Tierra helada regions are located at lower and higher altitudes respectively, with Tierra fría generally found between about 2,600 and 3,200 meters (8,500 to 10,500 feet), providing a more temperate climate, while Tierra helada is found above 4,800 meters and is often too harsh for human habitation. The Templada region is situated at a more moderate elevation, typically between 900 and 2,600 meters (3,000 to 8,500 feet) and features a climate that can support a wider variety of crops, yet it does not reach the altitudes where the P