The summit of Sillajhuay can be climbed and features Inca ruins on the summit; there are a number of such high altitude ruins in the Andes such as at Llullaillaco. This site was discovered in 2013. Mining takes place east of Sillajhuay, including sulfur mines; estimated deposits are of ore with 47% sulfur. The area has also been prospected for the possibility of obtaining geothermal power.