 "Campo rupestre" is found at elevations from 900 to 2,033 meters (2,952 to 6,670 ft) and is characterized by dry winters and wet summers, strong winds and high levels of irradiance.The soil in this ecoregion is nutrient-poor, extremely shallow and young.The geological formation subtending this impoverished soil is ancient, stable, weathered and diverse; c"ampo rupestre" areas occur on quartzite, granite, migmatites, gneiss, metarenites, and itabirites.