Tepuy hill autana
This beautiful hill called by the indigenous Autana, was declared a natural monument in 1978. This tepuy is located in the state of Amazonas Venezuela and is approximately 1,300 meters high. The upper part of this mountain is completely walled by sandstone cliffs belonging to the Roraima Formation and one of its main attractions is that within the mountain there is a cave formed entirely quartz, measuring 400 meters in length and 45 meters in length. height